ok. had it running on 900mhz for 11.5 hours.

was off the charger since 830am and battery died at 3pm. so 7.5 hours on 3g the whole time, listened to one cd, talked about 65 minutes, email was updating 6 email addresses every 15 minutes, took notes at church, browsed the internet and responded to posts on a couple blogs, bluetooth running almost the whole time too.

did not crash at all.

overall, battery is good. i usually only get 4-6 hours on the batteries.