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It also reduces battery life to about 4 hours.

Push notifications do?

I don't know if it's the push notifications or the AIM app itself. All I know is that I was beta testing the new AIM with push and my phone would always be dead by about 2 pm, and I don't feel like I talk to very many people. Maybe about 5 people.

My guess is that it was because my phone is always in vibrate mode and every time someone sent me a message my phone would vibrate.

"My guess is that it was because my phone is always in vibrate mode and every time someone sent me a message my phone would vibrate."

How would that be any different than getting a lot of text messages?

Good point. I average about 1 text message per day, so I don't know.

I've personally found that having the display on has been far and away the biggest battery drain on my phone. At least with the 3G. I haven't had enough time with the 3GS to know one way or the other.

My test was to have the iPod playing and periodically touching the screen to prevent it from going dark.

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