I have the 3Gs and Compared to my old iphone 8gb (before GP) is seems to run out of life sooner than the old one! But then maybe I'm using it more for Audioboo & video & voice commands. I love it!
I'm also having some troubles with the 3.0 update. It seems like the ATT detection is a lot shitter. I don't have as great coverage any more. When I first got the phone in the 2.0 days, the improvement over T-Mobile was amazing. Now, it's about equal. I hope they patch this soon, I'm tired of losing signal and 3G.
I got the iPhone issues as well. Since the 3.0 update I have noticed the battery drains a LOT faster than before.Didn't they say it was supposed to improve it? I think apple might have put the battery drain in there on purpose so ppl upgrade to the 3G S.... weirder things have happened lol.