I traded up for an S3 from an iPhone 4 in October. And am planning to stay with it after the S4 comes out later this year. It's a great phone, fast and the display is so much better than any of the iPhones' at this point (my opinion). Android takes a little getting used to, but much more fun than iOS. I've rooted my phone and have a lot more ccontrol over the way that the phone runs, that was my choice. I feel that the Android OS has passed by iOS as far as features go, at this point. Who knows in a year or two, but you'll really enjoy the S3 until you get your next phone after the S3 *smile*.

The bottom line is that I wouldn't wait if I were you *smile*.