I got android 4.2 and was all like "Yay! New features!", but after a while I realized that it slowed down to the pace of a bottom line froyo phone. App changing was a nightmare (usually ends in force close) the screen wouldn't turn on for upwards of five seconds after I hit the power button, and stuff would just occasionally run slowly. Granted when I get a program running its just as snappy as it should be. I had android 4.1 and it really was buttery smooth! It was amazing! But something went wrong in 4.2. Has anyone found a way to bring me back my butter?! Side note: I did disable Google currents due to some internet advice (and I don't use it) and i'm not sure if it helped or not. and I haven't been able to test 4.2.1 but from the looks of it, it hasn't been fixed.