I have to say I'm rather dismayed at the thought that they're moving towards having trackpads with no physical button! I guess they reckon that most people tap to click, but I'm definitely not one of them; I disabled the tap-to-click function minutes after I first really tried to use the trackpad (I kept accidentally clicking when I was just repositioning my fingers, and at other times I wanted to click, but had to tap much harder)! Whereas with just the trackpad button, I can click when I want, and use the track area just for tracking. Frankly, I hope it goes the way of the 3gen nano form factor, unless they have managed to configure the taps MUCH better than on previous laptops (ie not just adding new movements)
I'm also not too keen on the macbooks being silvery too. I know there were people endlessly whining about the white plastic enclosure and calling it everything from outdated to ugly, but I never agreed with that: I think the black and white laptops were very different and unique, they were less cold than the new aluminium style, and quite unlike anything else you could see, and that is now lost, at least for now; I suppose if we all complain loudly enough, they might decide to change that again, like it seems to have gone down with the square nanos. I am definitely glad I got to have the white one before the change though, and now it makes me even more paranoid about taking good care of it so I can keep it for years to come, as I really don't like the idea of the aluminium ones!
That said, I guess I may well get used to the new ones *shrug* But the first impression is not so positive. The big hard drives are sure to be a hit though!