Just got back from the Apple store after an appointment at the genius bar. I went in cause my mid-2009 13in MBP's battery last less than 2 hours when running on battery. This is with the bluetooth and wifi off, brightness set halfway and only having Pages open to edit an essay. They noticed I use SmcFanControl and mentioned that that program messes with the firmware that apple sends out cause it overrides the fan control.....iono, but its what they told me. They said that its best to get rid of that program... I currently have it running, at 2000RPM, the lowest setting I believe...with my MBP @ 127*F. Its not uncommon when on youTube, Hulu, or watching a movie in iTunes for the temp. to rise to 175*F plus...which is when the SMCFanControl speeds up the fans to 5000RPMs. Anywho....aside from being curious as to what other Mac users think about this....i'd also like to make sure I delete SMCFanControl as if it was never there...I know I can go the route of throwing SmcFanControl into AppCleaner or something but i'm hoping I don't leave any fan speed settings from FanControl even after deleting it.