Weight.
Screen quality.
Twice L2 cache.
No ugly black bezel.
If weight, and therefore portability, don't matter, a MacBook Pro is probably a better choice, as you can upgrade it with a better SSD than Apple offers and it's much more powerful than a MacBook (which is IMO rather comparable to Air, despite "it's less than 2 GHz!!!" reactions of some people).
I think no one who had used it would call rev. B Air with SSD slow. The only time I ever see a beachball on my Air is when reading big files via USB SuperDrive or otherwise being limited by I/O. Obviously other apps remain snappy during this time, so it isn't an issue for me.
Screen quality.
Twice L2 cache.
No ugly black bezel.
If weight, and therefore portability, don't matter, a MacBook Pro is probably a better choice, as you can upgrade it with a better SSD than Apple offers and it's much more powerful than a MacBook (which is IMO rather comparable to Air, despite "it's less than 2 GHz!!!" reactions of some people).
I think no one who had used it would call rev. B Air with SSD slow. The only time I ever see a beachball on my Air is when reading big files via USB SuperDrive or otherwise being limited by I/O. Obviously other apps remain snappy during this time, so it isn't an issue for me.