All Mobile OS's are limited to the manufacturer in question with the exception right now of Android and Windows CE.
RIM's OS can only go on RIM devices, Nokia's Symbian on Nok only phones and so on and so forth.
What's your point? OS X is NOT a mobile or an embedded OS. It's available in full retail form at large retail stores like Best Buy. Contrary to "upgrade" claims, the OS is not at all limited nor does it check for OS X to have been installed previously. It can in fact install just fine on a used PowerMac that has or had either OS 9 or Linux installed on it and OS X long since missing. It will in fact run fine on such a machine that has had its CPU replaced by non-Apple brand CPUs, such as those by Newer Technology.
For example, my PowerMac has a non-Apple graphics card, non-Apple CPU, non-Apple ram, non-Apple USB 2.0 hardware, non-Apple hard drives, non-Apple DVD-RW drive, non-Apple keyboard, non-Apple mouse, non-Apple speakers, non-Apple printer, non-Apple web-cam, non-Apple wireless networking and non-Apple firewire and USB hubs. The question is at WHAT POINT does Apple think its Operating System is so special that it cannot run on non-Apple hardware? My computers is a PPC Mac. Intel Macs need not have ANY Apple hardware and yet can and will run OS X 100% reliably if compatible hardware is chosen. This proves beyond the shadow of a doubt that in 2008, there is absolutely NOTHING "special" about Apple hardware in regards to running OS X. Thus, all arguments that Apple's hardware is special or somehow better than hardware put together by someone like Dell or even Psystar are rendered moot and void. The ONLY thing keeping OS X from running on such hardware is a 'kill switch' put in the OS by Apple that keeps it from running on competing hardware. Thus, Apple is fully admitting that they are being non-competitive in the hardware arena by using their OS as leverage to force you to buy THEIR generic Intel hardware IF you want to run OS X. Personally, I don't care who makes my hardware, be it Apple or someone else so long as it's quality, meets my needs and is offered at a competitive price.
The problem for me and others like me, let alone the potential BILLIONS of switchers out there is that Apple fails at least one, if not two of the above conditions on any given Mac they sell. Namely, their hardware either does not meet my needs (this includes ALL Macs except the Mac Pro) or it is not offered at a competitive price for my needs (in this case, the Mac Pro costs a bare minimum of $2300 and that's without the GPU I need, so figure a bare minimum of $2500). And that's where Apple gets into trouble.
One CAN successfully offer an argument that Apple's EXACT hardware IS competitive IF you compare every last feature of that hardware and assume you NEED that hardware. The problem is you do NOT *NEED* workstation class XEON processors to run most applications or games on the Mac. But you *DO* **NEED** a certain level GPU in order to run games and certain 3D apps on the Mac and thus all iMacs and the Mac Mini and ALL laptops FAIL to meet the NEEDS of a consumer that might happen to want to play a current Mac game or expect it to be able to run a game released later this year or some time next year as ALL those Macs are obsolete before you even buy them. You simply cannot expect any Mac short of a $2200 custom configured iMac or a MacPro with 8800GT GPU to run modern games, be it in OS X or via Boot Camp with Windows.
And THAT is the problem some of us have with Apple. I'm not a gamer, mind you. I bought a PC last November for $800 that can run virtually any current game and will run most just fine for the next year, maybe even two at lower level settings. What I wanted to buy was a Mac that I could use for running secure Mac applications and as a reliable iTunes server for my whole house audio system AND be able to play the occasional current game (e.g. I play a lot of Test Drive Unlimited with my G28 racing wheel). The problem in November was even the Mac Pro was out-of-date so I ended up buying upgrade hardware for my aging PowerMac (you don't NEED 3.0GHz Xeons to run 95% of Mac applications or anything near that level) and a PC running Windows XP to run what amounts to mostly games and my Pinball gaming development platform which I license games from to an arcade manufacturer. Apple didn't get a new computer sale because they didn't offer me hardware that I needed.
So, once again, the problem with comparing current Macs to say hardware from Dell (ignoring the operating system argument for just a moment) is that Apple has large gaping holes in its platform relative to those systems and its NOT propriety equipment we're talking about. The only low-end Mac is the Mac-Mini which has no usable 3D GPUs in it (neither does the MacBook, which is Apple's #1 hardware seller) so any potential gaming companies looking to start producing games for the Mac platform has to think twice because the only viable sales for its products are the tiny percentage of Mac users that own MacPros or the new top-of-the-line iMac. The rest of the Mac hardware platform is simply not suitable to gaming. The other iMacs and MBP can run yesterday's games and SOME of today's games with the settings turned way down, but are cannot be said to be even 'adequate' hardware for gaming. In point of fact, even the MacPro (at nearly $3000 with default CPU settings and an 8800GT installed) pales to the hardware out there (using SLI and similar technologies) that you can get for both Windows and Linux operating systems at half the price. Apple chooses not to support any of it in its own OS, so you have to get the top available single GPU cards to even hope to run a game (even under Boot Camp using a competing OS).
The point is the MacPro is NOT a gaming platform. It's a professional level workstation class computer that just happens to be the only real hardware (well that and that custom $2200+ iMac) that CAN run most modern games in the entire Apple hardware lineup! I would imagine even a fanboy would have to admit at least that much. He/she would much rather avoid that subject and point you to an XBox 360 instead, declaring PC gaming 'dead' or something of that sort despite the fact certain gaming genres are not suitable for such platforms and are alive and well in the Windows arena. The same Mac users will hail the 'return' of someone like Electronic Arts, but they don't seem to care a whit that almost no Mac hardware will run those games at acceptable frame rates and all the while Apple seems to not care one whit whether they do or not as Steve Jobs does not care about gaming.
So while it cannot be argued that Apple's current hardware lineup is anywhere near sufficient to cover all uses of Apple's operating system and thus there is a dire need for at least one if not two or three more computers in their arsenal to complete their lineup (i.e. a mid-range expandable and perhaps even a low-range expandable or at least a better equipped mini-machine and/or low-end laptops of which there are NO Apple equivalents to what is common and even prevalent Windows hardware). If Apple is not interested in manufacturing such equipment to fill those gaping holes in their lineup, the question becomes why don't they license someone else like Dell to fill those gaps? They do not have to relinquish all control of OS X to make one to three new models available to a new market that Apple does not cater to, but licensing such a market would inevitably gain substantial NEW market share for Apple. You cannot compare Apple of today with all its iPod/iPhone cachet to the Apple in the mid-90's that was already on a downward spiral and gave away too much control of what type of 'clones' could be offered.
I'm afraid it is BECAUSE Apple stubbornly refuses to cater to the gaping holes in its lineup that a company like Pystar can exist in the first place. Pystar has had no substantial advertising and it has no substantial name-sake in the Mac arena. Thus, by all accounts the fact it was even able to survive at all selling Mac clones to a market with such small market awareness and little to no Windows market notice (who probably do not read Mac forums to know they even exist except through word-of-mouth from Mac fans telling their Windows friends about them) indicates to me that Psystar is just the tip of the iceberg for potential sales to such markets. I argue if Apple were smart it would take the hint from all this and simply make limited licensing available to cover those models it does not apparently 'like' for which probably amounts to 'aesthetic' reasons but which has no bearing on a typical Windows user who couldn't care less if their PC is 'stylish' or not. It should also open up more of OS X to GPU manufacturers and the markets they largely serve (i.e. PC gaming) so that OS X is a more capable operating system capable of effectively dealing with Windows on a one-to-one feature basis. Part of OS X is open-source (its BSD underpinnings). It could in fact get more open-source development on the graphics end for such things as improved OpenGL and the like instead of keeping everything so secretive. A USB based graphics company had to reverse engineer their product to even get it to work with the Mac operating system at all, whereas it has far greater speed and capability to run under Windows.
In short, by being overly secretive and not filling all the gaps in the general computing market for its operating system, Apple has created the "Perfect Storm" to bring about this Psystar business in the first place. By not listening to users that have long been begging Apple for a mid-range expandable mini-tower or at least a Mac-Mini or Macbook with a DECENT GPU and with the MacPro being out of the reach of most such users who simply want ACCEPTABLE levels of performance from their market segment price range (again, you can get an $800-1200 PC that can run almost all current 3D games while Apple requires $2200+ for what amounts to a level or two LESS gaming capability with outdated GPUs), they have quite simply brought this situation on themselves. Whether or not you WANT to see 'clones' is beside the point in that regard. Some of us simply want to see those holes plugged by SOMEONE, be it Apple or someone else. We do not WANT to have to use Windows to fill those gaps. Some of us wish we never had to use Windows ever again, but by pushing us away, that is exactly the message Apple is trying to send us, it seems. Fill the gaps, Apple and companies like Psystar wouldn't exist in the first place.
Given Apple's refusal to listen to its customers, but instead persistence to Steve's 'vision' alone, I find myself rooting for Pystar regardless of what chances they might have or not. I do not root for them because I *LIKE* Psystar or that I think them anything but opportunists looking to make a fast buck, but rather I'm tired of waiting for Apple to offer hardware to meet my needs and I'm REALLY tired of Apple fanboys telling me to go buy a Windows PC when I'd rather run OS X. The two are simply NOT the same thing no matter how much they'd like to pretend they are. OS X is an operating system, not a platform. It does not matter what hardware its running on. It's STILL the SAME operating system. Whether created for a specific hardware platform or not, the fact is today it's independent of that platform except through artificial means. It CANNOT be compared to embedded or mobile operating systems. Whether Apple can or should have the right to limit who can use it and for what purpose is beside the point to a customer like myself, who simply wants MODERN hardware with modern GPUs for REASONABLE prices to run it on.
If Apple refuses to fill that market segment, it should consider it only inevitable that someone would try to fill it for them. But seeing the same tired fanboy type arguments again and again instead of solutions to a market gap or even admitting one exists is the reason I feel a counter-voice needs to continue to be heard even if I'm sick of the subject. We users who want mid-range expandables *DO* exist, despite what fanboys would want people to believe and we are the tip of the iceberg because we already came to the Mac. The literally BILLIONS of potential switchers out there aren't speaking up because they have no reason to switch when comparable hardware to buy isn't being offered. Again, many fanboy types are happy that the Mac is a smaller market share because it lets them feel 'elitist' and that makes them happy. Others point to Apple profits and they're happy because they're making money. Neither group has any reason to WANT either a larger market share or the computers needed to fill that share. They're happy with their iMacs or elitist but expensive MacPros and thus don't WANT Apple to change a thing. They assume because Apple is profitable right now that Apple does not NEED to change a thing to remain profitable long into the future (despite lessons from the past where Apple once ruled with the Apple II and had a good share with the original Mac but almost went bankrupt when Windows95 came out). But I for one would like to see as many shelves in places like Best Buy dedicated to Mac software as PC software some day. Given the iPod's dominance in the market place, it is still not Apple's #1 revenue generator by a LONG SHOT. It is the Mac itself that makes most of their revenue. The iPhone and iPod are somewhat 'halo' products in that regard. While they control a significant share of their market, they are not the big revenue generators for the company. Thus, it is in Apple's best interests to increase its personal computer market share while it still holds that cachet in those markets. If Apple were to become overshadowed in those markets in the next few years, what would happen to Mac sales? Would they continue to be just as strong without the boost of PR from iPods and iPhones? That's a question Apple should definitely consider. There was a time when Swatches were all the rage. They are no longer all the rage. Apple cannot count on iPods to be popular forever or for the blunder of Microsoft's Vista operating system to just sit on its laurels forever either. They should move NOW while the market is ripe for the picking or else risk taking a back seat again in the future.