Home a little earlier then normal, due to an event I'm attending later. Battery life is much better today, at 66% charge left. And I think I know why. AIM wasn't signed in today, seems I forgot to restart it after a reboot of the phone. I guess I shot myself in the foot because I did the same thing I did on my iPhone for a while. I used the official AIM client from AOL. On the iPhone, and iPad it never kills the battery. But clearly it's doing something on Android that takes 40-50% of a charge by running it for 8-12 hours. Guess I'll have to investigate some other way of being on AIM now.

Oh, and the Battery usage screen never indicated AIM was anywhere near the top. It tended to show up below Google Listen, and it always listed the Screen entry as the main battery user. Highly misleading and really useless to me now that I know it can't even properly identify the major component causing power loss.