[MattTibby]

First, I would recommend that not doing a total restore. All I had to do was reset my settings. That way it does not delete any of my main information or apps.

Then you can just download a problem and it should fix your iTunes account, which for some reason gets corrupted. I found out what cause this on my iPhone. Whenever I download an update from my iPhone, my iTunes credentials (or account information) gets corrupted. So I will not be doing that many more. It's pretty stupid the so many people are having problems, but Apple hasn't done anything about it yet. Hopefully, the new updated with help.

When you load "Diamond Twister," are you installing it from your iPhone or iTunes on your computer. I know you can stop installing the app if it is installing from iTunes (just click the little "x" near the sync screen). On the iPhone, I'm not so sure.

Hope that helps a little.