Ok, I haven't tried out 7 yet, and I'll take your word that some of the underlying features may be missing, but I'm still surprised at the number of people who won't give the new UI a go, I mean really, is the stuff from 2000 still better than their new stuff. They even tried to make it more Mac-like by copying the dock. Then again, people on these forums probably ain't looking at 7 like a 'typical' consumer would.
Microsoft didn't copy the Dock. All they did was combine the Quick Launch toolbar with the taskbar application buttons. Of course when you blend the two together, they are going to give the outward appearance of the Dock. But the difference is that one is usable and the other is crap.
Here's one man's opinion of why the Dock sucks, and he's right, for the most part. And Apple knows he's right, because they added Exposé to Panther back in 2003. To put it simply, the Dock is nothing more than an application launcher. And not a particularly great one at that. It doesn't adhere to Fitts' Law in any way, as it constantly moves around, changes sizes and icons have a tendency to just randomly appear and disappear.
The taskbar is a far superior solution because it has always been about window management. Now in Windows 7, it can also do application launching, as well. When you click on an icon, it launches the application. And now that same icon that did the launching now becomes the familiar taskbar application button, the window manager. From here, you see all the windows related to that application, and you can close them, minimize them, etc. And with Windows 7, you can now pin icons to the taskbar and rearrange them in any order you want, encouraging muscle memory. And since the taskbar is of a static size and shape, it well adheres to Fitts' Law. The extreme lower left (by default) will always get you to the Start menu, while the extreme lower right (by default) will now activate Aero Peek. In Mac OS X, the Dock (by default) is in the center and magnifies the icons while hovering. This means there is no definite area that can be reliably clicked. You have to hunt for the icons every time.
I'm going to have to disagree with the OP. Windows 7 could prove to be a threat to OS X's market share. Even though it's only a Beta, I find it to be much better then Vista. I don't think that there will be any "I'm a Mac, and I'm a PC" adds bashing Windows 7. I find Windows 7 to be a well put together OS. But... Microsoft has plenty of time to royaly screw Windows 7 up, and given Microsoft's track record, I think that they just might end up doing just that.
How exactly can Windows 7 be a threat to Mac OS X's market share when the latter is barely even at 10% on a worldwide scale? Microsoft owns 90% of the client operating system market and it's not going anywhere anytime soon. Mac OS X has such a tiny market share that even if it lost or gained customers, you'd never really be able to tell. Not to mention that a lot of "switchers" are already anti-Microsoft in the first place, so they simply won't care about Windows 7.
Of course Apple will continue their "Get a Mac" campaign. Why wouldn't they? It's quite successful, even though it simply portrays Apple (and its fanboys) as immature whiners. In fact, I guarantee you the first commerical will be talking about the "copied" Dock in Windows 7, despite the fact that Microsoft could (and should) counter explaining how their taskbar is a far superior solution.
Windows 7 is coming along very nicely, and I'm curious as to how exactly Microsoft can "royally screw up" Windows 7. Do you even know what the development road map is? Windows 7 is not designed to be a major milestone release the way Vista was. Vista was the milestone. It brought new security models, new kernel designs and a host of new technologies to the table. It's very similar to what Windows 95 was when compared to Windows 3.1. But now, all that hard technical work is done. Windows 7 is simply evolutionary, improving and maturing what Vista already brought. Windows 7 is like Windows 98. It's the same product as its predecessor, just a little better. Microsoft can't screw it up, simply because they aren't doing anything drastic in terms of kernel design. Anything that works on Windows Vista will work on Windows 7, as simple as that.