Has anyone else been experiencing instabilty with their iPod Touch 4G's in the last few weeks. App's are not working correctly, sometimes in music play back it will stop and return to the home screen. I have reset mine but the problem continues. I have had a large number of App updates in the last few weeks and it seems the problem started with this. I suppose these App's have been tweaked for iOS-5 I wonder if this is the problem. I am not used to an Apple product doing this. In the PC/Window's world this sort of thing, while irritating, is just part of the enviroment.