I just bought a chinese tablet with android 2.2 OS. I have the same complaint that many other users have, battery life. I may get 1hr runtime. I've tried zroot and androot and both don't work. I've tried a battery saver app and airplane mode app. If they're making things better, it's not by much. I cannot connect to computer. Needs to be something I can put on a microSD. It's a generic MID, made by sinovideo.