I went to the Apple store yesterday and checked out the new Macbook airs. I'm thinking about waiting for a renewal of the MB pros, but I may have to go ahead and purchase the MB air. I would definitely get the 13" with 128g and 4g. It would be my only computer and the 11" just seems too small in the screen for looking at photos, watching video/movies, watching football on ESPN3, etc. I was able to hold the 11 in one hand, and the 13 in the other, and compare the weights. The weight difference is, to me, a non-factor. I could barely tell the difference. So it did come down to screen size, and the faster processor did help.