I used to play a bunch of games on my iPod touch 4. But recently I was eligible for a phone upgrade, and I decided that I was tired of carrying both my iPod and my phone around, so I got the iPhone 4 for my upgrade. But when I synched all of my apps and my music, it restarted all of my games. So all of my high-scores and saved game data has been deleted. So how do I transfer the saved game data from my iPod onto my iPhone?