I have a handful of apps that are more than twice the file size than they are advertised in itunes. For example, Super Monkey Ball 2 is advertised as 74.8 MB. In my itunes, the actual file is 180.3 MB. I'm not very far in the game, so I don't think that it's saved data or anything. Can I delete the file in itunes and redownload it for free on my ipod touch to see if the size goes down? I don't care about losing the data.