I've only had my Itouch for a few months, so the battery should still be in pretty good shape. I had Jailbroken it on 1.1.4 and had installed quite a few apps and games, and some of the 'hidden' system tweaks. I was finding that my battery would only last about 4/5 hours before I got the 20% warning. My usage was that I would play a game on the way to work (Simon the Sorcerer on ScummVM) for about 15-20mins. Then when in work I would listen to music during the day for about 4 or so hours. And before the end of the day the battery would be down to about 10 or 20%. I had read that having SSH installed could use the battery, so I installed BossPrefs to switch off SSH, and Wireless was also off all day. I was wanting to use Cydia from now on to install apps (at least the ones that were available on it), so this morning I restored my Ipod - reinstalled Installer, then Cydia. I've also installed Summerboard, ScummVM, SnesIphone, and BossPrefs. So far this morning, I've had the same usage as yesterday (Game on the way to work and music all morning) and there's only a fraction of the battery used according to the meter. So what's going on?? Is there some app (other than SSH) that uses up battery a lot, even when the app itself isn't being used? The only other difference is that I'm not using the same SMB theme as I was (which was Mystique), but surely that wouldn't have an effect on the battery?? I was getting really annoyed at the crap battery, but so far all seems to be back to normal. Has anyone else experienced this?