PS Vita vs iPhone, which is better for gaming?

I heard that the PS Vita has almost no games, and the few it does have all suck. While the iPhone on the other hand, has possibly thousands of games, some of which are for hardcore gamers and are actually really good. Comparable to the PS3 and Xbox 360.

How to unfreeze your Iphone 3g?

I've tried all ways possible my top button doesn't work so i don't know how to unfreeze it but i don't wanna contact the apple store is there any other ways besides resetting it?

Why won't iMessage work on my jailbroken iPhone 4?

I just got my stepmom's old iPhone 4. My dad had jailbroken it on iOS 5.1.1 using Redsn0w. Now whenever I try to activate/sign into iMessage or FaceTime, after about 15-20 seconds, and error pops up saying,"Activation Failed/Unsuccessful". My uncle has the same problem on his iPhone 4(jailbroken on iOS 5.0.1).Is there a way to fix this? I don't like always using my iPod Touch to iMessage.

How to delete my twitter on my iPhone?

I'm stupid and I clicked on some spam in a twitter message so now tweets appear that I did not post. I want to delete the twitter account from my phone and start over. Is there any way I can do it from the mobile app? If so please explain