My phone is unlocked & jailbroken. The battery has been fine up until putting Installous on there and installing two programs (flame me). I noticed that when I charge it via laptop, it stayed at 20% while the back got really hot. I put it on the wall charger at 4AM this morning, by 10AM, it was only at about 90%, with the back still being hot. I tried rebooting, uninstalling Installous and rebooting again. Now, with the battery at 90%, I went and saw transformers, and after the movie, 1/3 of the battery was already drained. After lunch, it was at 50%. Also, when scrolling through the music library, it seems jumpy. So, is it a battery or it is just reading it wrong?