MacBook Air; Wow. Just Wow.

It's thin. Very thin, and quite fast, possibly very fast (a quick play in the Regent Street store isn't a good test but there was no obvious difference between the operation of the Air and the Pro). It switches off and on pretty much instantly (by the time the screen is open it is lit and ready for use) so you'll be up and running as soon as you get it out of your bag and it's ridiculously light. The screen is pretty good, the keyboard is physically present (unlike the iPad) and it looks fantastic.

Downsides? It's not cheap at £849, and 64Gb storage isn't going to be enough for the MacBook Air to be a primary machine (try storing your movies, photos and music in such a small space). For power users the screen is too small, the processor too slow (editing movies is probably a no-no) and the lack of an optical disc drive could be an issue.

Would I buy one? I think the answer is a definite "Yes, if I didn't already have an iPad". As it is I'll probably wait for the new MacBook Pros (a refresh is due any week now if Apple stick to their normal MBP upgrade cycle) before making a decision.