I bought the 11" Air shortly after it came out as a fun little secondary notebook, and liked it so much I picked up the 13" as well for regular work purposes (replacing a 15" MBP).
I just finished coding an app on the 11" and it worked great. I never had a problem with the screen size or performance, and also have never had a problem with the apple logo showing through the display that another poster mentioned (on either the 11" or the 13"). I do occasionally hook it up to a 23" monitor when I need to do any design work, since there is a point where the 11" display is just too small for some tasks.
My only regret was going with the low-end 11" system. I really should have opted for the higher end 11", but didn't at the time because I was really buying it as "fun" purchase and the $999 entry price point was pretty attractive. If you're considering one, definitely spend the extra money to get the next step up.
I just finished coding an app on the 11" and it worked great. I never had a problem with the screen size or performance, and also have never had a problem with the apple logo showing through the display that another poster mentioned (on either the 11" or the 13"). I do occasionally hook it up to a 23" monitor when I need to do any design work, since there is a point where the 11" display is just too small for some tasks.
My only regret was going with the low-end 11" system. I really should have opted for the higher end 11", but didn't at the time because I was really buying it as "fun" purchase and the $999 entry price point was pretty attractive. If you're considering one, definitely spend the extra money to get the next step up.