I bought an 11" MacBook Air to allow me to have an ultraportable that was still quite capable. I got the ultimate configuration, and was blown away by how responsive this thing is. Largely due to the fact that there's an SSD in there of course, but I did a few HandBrake encodes, and they weren't a huge deal longer than what I was used to from my MacBook Pro (increase of maybe 50%, so a 20min encode on the MBP, takes 40mins). Also, the screen quality is fantastic. Having been switching between the 11" Air and my 15" Pro (which has standard res), the smaller fonts seemed so much more natural, as they were crisp. Almost like looking from the iPhone 3G to the iPhone 4. Also, the fact that there is no glass makes a hell of a difference. I took back the high-res 15" MBP last year because of the small fonts, but maybe I was too quick to judge and adjust. Also, the lack of glare is a relief to my eyes. Granted it is still a glossy display, but glossy on it's own isn't that reflective compared to a sheet of glass in front of it. So, I've decided that given my surprise to the power of the 11" Air, I'm selling my 15" Pro, and exchanging the 11" Air for a 13" Air in the ultimate config. The 13" Air will be suitable for when I need to use it to encode videos, and I'm guessing the likes of 3Ds Max and Maya will perform relatively well too. Guess now I've had the Air for 3 days, I can no longer tolerate traditional hard drives, glass over glossy displays, and PPI lower than 125! It'll be interesting to see what the new MacBook Pro's are like, but for now, I'm sold on the 13" MacBook Air. Thought I'd share my 2 pence with you guys.