Just took delivery of my 13" MBA 1.8GHz i7. And it rocks, I used to have a 11" MBA, but I realized very quickly it was a bit too small to be my only computer, so it has moved on to become my wifes out and about laptop, to compliment her 21" iMac, and I've got a brand new 13". Which I must say is very good indeed, bigger then I was expecting, a much better screen size and aspect ratio compared to the 11". It's snappy as hell, it just rocks along - I'm happy as a pig in **** with it. The only part that pissed me off is that it took so long to be delivered, a week! But heck China is a big place right... Oh and the back lit keyboard is a very welcome addition / return. To anyone thinking of buying an Air and who can't decide between the 11" and 13" - I'd say this, buy the 11" if you only want a glorified iPad, something you can use to compliment your existing desktop or laptop. Buy the 13" if you want a full on laptop that will be your only computer, unless you're a hardcore gamer or doing serious video editing or graphics based work, this is all anyone really needs.