Hi, I know there are many threads out there about battery life, however, i haven't really found a good answer. I am aware of how to calibrate the battery and have done so 3x since I have received my mbp about two weeks ago (Week 43 model - 2.16GHZ 2GB RAM 120GB HD). I just finished charging the battery and I wanted to see what kind of time would show in the menu bar... 2 hours and 57 minutes remaining. That is with 50% screen brightness, just this website open, airport of course, no BT, no backlight, or any other programs. Although I need to get used to a shorter battery life (upgraded from macbook), this seems too short to me. Another red-flag is that when I take out the mag-safe, Expose is very choppy and sluggish. Immediately after I plug in the magsafe, it is smooth again much quicker. I never had this expose issue wiht the macbook, which is odd to me since there were no dedicated graphics on that laptop....and this one shouldn't be worse. Should I take it in and have it looked at??? Or am I over -reacting? Like many others have stated, we pay good $$ for these things, they should be semi-flawless.