Game Center won't be available for older iPhones

Were you looking for another reason to upgrade from your older iPhone or iPod touch to the iPhone 4? Well Apple is happy to oblige you. In the latest beta of Game Center, Apple confirms that Game Center is no longer supported on the 3G and 2nd generation iPod touch. Guess that'll at least keep the other gaming networks, such as OpenFeint and Plus+ around for a while.