Runs well on MacBook Air (October 2010)
I love this game. Lots of things to do if you like the cross between RPG and FPS.
Im running on a Macbook Air (Oct 2010 Model, 13", 4GB RAM, 2.1GHZ CPU) and while the CPU maxes out as soon as you start the program you get a fairly smooth frame rate with the graphics turned down to medium at the full 1440x900 resolution.
Granted, its not full quality in all its glory, but I didnt expect that from my MacBook Air (Im actually quite pleased with the full screen resolution) and the gameplay is quite fun and engaging with a quirky sense of humour - and that to me is the most important thing.
Overall, Id highly recommend this game.
MAH42 about
Borderlands Game Of The Year, v1.0.1