I have zero complaints about my jailbroken 3GS. I have it customized and working just the way I want it with multitasking, grip notification, etc etc. For my purposes, I feel like I would be losing critical functionality with the i4 if it can't be JB. I'm happy with the speed of the 3GS, it never feels laggy. I hardly use video recording and I don't take many pictures, so it's sufficient in that department. The only advantage for me with the iPhone 4 would be the hi-res display as I do read a lot of books on my phone. All that said, I still just want the iPhone 4 and I can't explain why. I guess the apple hype and marketing works on me like hypnotic suggestion. I constantly read these forums and don't see anything that makes me feel like I need or want the i4, yet the desire is still there in the back of my mind chipping away at my better judgement and rationality. It might just be a matter of time before I find myself waiting in line like a sheep to buy something I know I don't need. Damn this consumer culture!