i got the 11.6 inch mba ultimate. I don't find the screen to small at all especially with the new pinch to zoom feature and fullscreen. the 11 inch is much more portable & lighter than the 13inch. the 13inch seems un-necessary to be without more ports because theres a good 5 inches where the machine has nothing but aluminum along the sides. it seems though if your going to go for a skinny laptop. the 13inch mba seems to be a stretched out and compressed version of the pro. honestly the only difference between the 13mba and 13mbp is a couple pounds and a ton of ports.,other than that i assume that the term "portability" is a complete marketing term for "light". should be called the macbook-pro light.
honestly when they make the mbp with ssd standard how will you justify the purchase of the mba 13?.
the thin form of the 11inch version on the mba is some completely unique to the air lineup.
I can never see myself getting a 13mba because i look at it in astonishment that people actually buy it when its just a normal sized computer without any ports and it weighs as much as any dell or acer computer.
if your gonna buy a "portable" computer actually t=get one that is portable. 11.6 inches. very thin and isn't a big ugly slap of aluminum like the 13inch mba...
but you can decide for yourself.