I plugged in my iPhone yesterday for a normal sync. The first sign of trouble was the bar at the bottom of iTunes that shows how much RAM is used up. Normally it shows a bunch of space taken for music, video, some for apps, and a sliver for "other". But this time, the "other" bar took up most of the space, and music wasn't shown at all. I figured it was just a display glitch, so I let the sync continued. After the backup portion of the sync, I noticed iTunes was removing a bunch of apps. I let the sync continue, figuring that interrupting it would make things worse. After a very long time (over an hour), the sync was done and I checked my phone. Everything was there, but many of app icons were in different places, and about 3/4 of the apps had lost all their saved data! This includes all of my games and a few other apps. But some were ok, as were all the native apps. WTF?? So basically, iTunes uninstalled and reinstalled a number of apps without any prompting from me, and as you know, when you remove an app, you trash all its data. I plugged the phone back in for another sync. Of course this started with a backup, which overwrote my previous backup, so now I'm committed. I don't fully understand how backups work, so I didn't know better. Then I tried a full phone restore, which worked fine, but it put me back to where I was after the faulty sync, ie. everything was there but saved data was lost. Can anyone shed some light on how this glitch happened and how I can prevent it (or recover from it) in the future? I've had my phone since August and it's been relatively problem-free until now. I have about 6 pages of apps.