Hi there ... I just registered. Have had an iPhone 3GS since December and just upgraded to the iPhone4 but still have my 3GS. It seems like it would be advantageous to keep it since it's like a small sized computer and everyting works but the phone service. Do most of you keep your older version of the iPhone when you upgrade because you find that you use it a lot? or is that overkill? I also am looking for a belt clip holster WITH place for a few credit cards and license since I don't like to carry a purse. Naztech makes one that was really good for my Motorola but is too short for the magnetic flap to close with the iPhone. I really like the multi-tasking on OS 4 !!! and the resolution of iPhone4 is wunnerful! Any comments out there about a comparison to Samsung's Captive since I have a friend who just raves about it and says I should have gone with it for camera and video. Well, that's about it ... you can see i'm REALLY enthusiastic lol!