The iPhone 4S is Apple’s top of the line smartphone, but is it just a small upgrade over the iPhone 4 or something entirely different? It looks the same, but does it act the same? New in the iPhone 4S is Siri, Apple’s virtual personal assistant, along with an upgraded camera, twice the speed as far as processing and downloads are concerned, and a redesigned antenna system that also supports global roaming for Verizon and Sprint users. Are these new features enough to upgrade your iPhone 4, though? What about iPhone 3GS owners or maybe even those of you who are stuck using some other smartphone you bought because the salesperson said it was just good as that iPhone your carrier didn’t offer at the time?
