I picked up the Air 11. Very impressed with it so far.
It is exactly what I was looking for in a portable on-the-road computer,
Small, very light, excellent screen, snappy performance. It is the most elegant computer I have ever seen.
I loaded 5D MK2 files into lightroom on it, and performance was good.
For my needs - essentially quick review, storage and backup while on the road - a great solution.
For writing, fantastic. The keyboard has a great feel to it.
Only wish - backlit keyboard.