Yep, I really like jonathans app too but the battery pull thing got on my nerves as it seems like I'm always doing that.

Perfect? Hopefully. We tried it on quite a few devices and it seems to work good. Please report any issues here. Biggest issue is DO NOT load the 4.2 version on a 4.1 device. I've reloaded the OS to my old 7290 several times during testing!