Recently I had the opportunity to purchase a Macbook Air that I've been saving for a while for, with the intent of using it as a replacement for my 2011 15" Pro. loved the form factor of the air and the benefits the SSD provided, but I will say now that buying it (and returning it two days later) has really just made me love my MacBook Pro. I really liked the SSD benefits, and to anyone thinking about making the switch, I recommend you check out the Optibay idea ahead of time. I just put a 240GB OWC Mercury 6G in my computer and it's insanely fast now. Although 95% percent of my time is spent doing tasks the air can handle very well (Xcode, light Photoshop, Dreamweaver) the 5% was just painful on the air (running a script to break apart a large PDF into sections, After Effects rendering with particle creation). The 3.1GHz turboboost for poor, single-threaded Acrobat Pro was sorely missed. The limited space also meant that my speed/portability would be hindered by an external hard drive eventually. The addition of the drive was very simple and brought this already great computer even further. I'm sure all this wil be unimportant as soon as they release the new Pro a month or so from now, but to anyone who was thinking of making the switch, think twice! You've already got a great machine, make it incredible!