About three days ago I decided the only way to get the 11in obsession out of my mind is to try it and decide the 13in was better.
Well, after three days of playing with the 11in air, the 13in is now gone and the 11in will be staying.
The 11in macbook air gave me a couple of fears, that ended up not being true after use.
One fear was the screen size difference. I'm surprised, but the smaller screen and lower resolution didn't feel like much of a step down for me. I actually feel it's easier to read text, and love watching native 16x9 video streams on the 11in much better. I should also note, that my 13in air had the LG panel, while the 11in has the sammy panel. I didn't think I'd notice a difference, but I do. The colors on the LG were horrific in my opinion.
My other fear was the trackpad difference. It took me two seconds to get used to the slightly smaller trackpad. Although the clicking mechanism is much stiffer feeling to me and makes more noise than the 13in did. But it's not a big deal.
The 11in just feels right to me.