I do lots of pro work ranging from audio to video editing. My mobile solution right now is a thinkpad. The drive bay on the side, they call it ultra bay, whatever, is replaceable with three alternatives: I can use my thinkpad in the standard way it was meant to be used with an optical drive. I can use that bay to shove an extra hard drive in there, which is a god send for when i do editing, my main 160gb drive plus an extra 160gb in the drive bay = sweet! I can use that bay to shove a battery in there so now I have 2 batteries giving me about 10 hours of battery life no sweat Now I realize that Apple has some smart mofo's working for them, but do you think such a relativly simple feature will be added? I can think of the benefits now, I mean whenever blueray or hddvd burners for laptops become cheap enough, instead of carrying around an external unit, or buying a new laptop, i can just swap the optical drive! So what do you think guys, innovation is coming? or just another case change with no real benefits except maybe it looks a little bit cooler.