2.5 hours of video

I just figured out by real life testing that my new Canon PowerShot SD880 IS can take 2.5 hours of video in one full battery charge.

That kind of give me some incentive to buy a 16Gb card because a 4Gb card can take 50 minutes of high quality 640 x 480 video. So 16 Gb will able to handle 200 minutes. But in this case the bottomneck is on the battery so need to middle of the process I need to change battery.