Opinion: iPhone 3GS is Apple's secret weapon: 
The iPhone 4S is pretty awesome. The iPhone 4 is nice as well. But PCWorld's Tony Bradley thinks the free iPhone 3GS is a game changer for Apple.
Opinion: iPhone 3GS is Apple's secret weapon: The iPhone 4S is pretty awesome. The iPhone 4 is nice as well. But PCWorld's Tony Bradley thinks the free iPhone 3GS is a game changer for Apple.
