iPhones, no matter how sophisticated, do occasionally have problems. At some point you may have to push your phone into recovery mode. This is basically a manual way of rebooting and restoring your phone. Turn off the phone by holding the “Sleep/Wake” button for about five seconds and then sliding
Want to build your own iPhone game, but don't know any code? U.S. startup Gendai Games may have just what you're looking for. They recently released a public alpha version of Game Salad, a drag-and-drop game creator for the Mac. While it seems to be focused on making games for embedding to your blog or sharing on social networks like Facebook, they say it can also make games to be published to the App Store for iPhones.