Work amazing with each other!! Just thought I'd let all 3GS owners know that! I've searched this forum, and there ain't much posts from 3GS owners. I was extremely skeptical about upgrading, but from my experience, iOS 5 is so much smoother on my 3GS than iOS4, no choppiness, no delays, the only pain I've experienced when restoring, is that the backup didn't remember my folders setup, so all my 80+ apps were scattered across 7 screens, had to reorganize all over again. So I'm officially waiting for iPhone 5!