hey TiPb!! Just wanted to share my thoughts about using iOS 4 on my 3GS, and to see if you all have experienced similar things. After installing iOS 4, I notice an amazing speed increase with activities like loading web pages over wifi and 3G and launching programs. I can't believe how fast I can move between apps and how quickly web pages render. The colors also seem much more rich in iOS 4 vs. iOS 3. My wallpapers and app icons really pop. I was at best buy today and held my iphone to the one they had on the display running the previous OS and the color difference was amazing. The only negative thing about iOS 4 I've noticed is if you point safari to apple's website and try to customize a macbook, the browser hangs horribly, and sometimes will crash. Other then that, it's a really stellar update so for those of you still waiting,