[abrigham]

I haven't taken any exact measurements of my battery life just yet, but I can last most of my night (I work 3rd shift)... I take it off the charger about 4pm and with moderate usage it lasts until I go to bed around 6am. This is w/ 4G, BT, Wifi all Off and GPS on. When I first got the phone, I was only getting 4-5 hours and in the battery usage it was showing Android System at around 60%... I turned off the Live Wallpaper and that seemed to correct that. Something interesting, at my work, I have 1 bar of 4G coverage. I accidentally left it on for a 2 hour stretch at one point, wasn't actively using it but did have FriendStream updates and sync settings to every 1 hour, and it barely touched my battery in that 2 hour stretch... oh, and that's with the "always on data" setting left on.

I honestly don't think there's going to be one set solution for everyone. It will depend heavily on your coverage area, and individual usage patterns just like w/ any other phone...