OK, so the flash is replaceable by the user. And maybe there are two.
But to refer to this as everything is replaceable except the GPU and CPU seems silly. It turns out to be the ONLY thing that can be replaced, which is one of the major criticisms of the box.
I'm not sure why so many people are freaking out. You guys totally underestimate the 3rd party vendors. When MBA's first came out, the non-standard SSD was not replaceable. Given some time, the connector was replicated and now it is. I'm sure as SSD storage gets larger, and even the GPU power gets higher, a replaceable part will be made so that we will be able to upgrade most parts out of the nMP.
THIS EXACTLY! It's normally cheaper on a Mac to order the smaller storage solution and then buy aftermarket to beef it up. Same for memory, and now for GPU's (5.1 and lower MPs). Apple is great, but the prices for memory, storage, and GPU's are ridiculously non-competive IMO.
This is the old thinking, but Apple SSD's are quite competitive now - considering it gives you 2x the speed of regular SSD's without having to create a RAID via a SATA III connection.
Apple inventing another blade standard when there is already a group of folks working on one doesn't make a whole lot of sense if the long term aim is to get industry consensus on moving forward.
Same reason made sense to take HTML5 and Javascript and move them forward as a "Adobe Flash" replacement than coming up with something different and prorpriatary ( looking at you MS Sliverlight. )
In Apple's case, it does make sense if you can see the bigger picture.
In Sony's case, they invest heavily in proprietary media to try to get a lock down on the market. More have failed than succeeded but of the ones that did make it, it's paid off. This is basically their version of Hollywood investing in movies.
IMHO, Apple goes off standard when they're trying to do something better than what the market demands; and when you're creating "products that people don't even know they want," chances are you will need to get creative before the rest of the industry does.
The new iOS devices have reversible connectors; guess what? USB is now talking about making a reversible connector for their next gen design. It wouldn't surprise me if the two looks similar when it's all said and done.
Most of the tweaks have been to improve speed, or make the connections smaller. I for one applaud their efforts to think different because they actually have the power to instigate change while the rest of the industry sits on old standards. If we want the newest, shiniest, computers; this is the train we've been signed up the ride. Yes, I too would love user upgradable parts that I can easily purchase from online vendors. However, I also realize that when I can't, it's cause I'm getting something slightly better in return - performance, aesthetics, or otherwise.