I am amazed at how good Toy Story 3 looks on the Iphone 4's Retina display. Of coure I never had an Iphone 3GS for comparison, but I'm sure its noticeably better. I noticed the 5 megapixel camera can vary from ok to nice stills. However they are better taken on my 12 megapixel digital camera. Movies are however, are where the iphone 4 shines! I keep Princess Frog and Toy Story on to keep my kids entertained on long car rides. Too bad I only have 16GB or I'd put more movies on it. Or maybe I should narrow down my 1300 mp3's for some more space, lol!