So when I bought my iPod Touch 4G back in September '10, I initially synced it with a PC (which had lots of music, movies and TV shows on it). Well, the PC died and I got a MacBook Pro (which I had been planning to do anyways). When the PC started to go I had moved the media over to a different Mac in our house that wasn't really mine. So I used Time Machine to get it all on my Mac. But anyways here it is: When I plug the iPod in to the Mac, I can make backups, I can transfer purchases, I can software update. But I can't fully sync it with the Mac. iTunes is saying that the iPod is synced to another library on another computer and that if I'd like to, I can sync it to the new one but it'll erase everything from it. I'm fine with it erasing the music, because it's all on here. It can erase my Camera Roll because it's all in iPhoto. But if it erases my (quite a lot of) apps, will any of the apps' data be intact when I sync it back over? I know I have backups made, but if it erases the iPod because its synced to another computer (which by the way iTunes, that computer is DEAD), will, say, I lose my Angry Birds levels (not to sound like a person who has no life but games, but I'd be pretty pissed if they were lost for this reason). Sorry for ranting. But again-bought iTouch, synced to PC, PC is dead, can't sync to mac unless it removes apps, will that erase app data. Thanks.