I finally get it why people jailbreak. I have upgraded to 4.0 and everything works fine, with no JB. However I am struck with how excited we all get when Apple puts in a feature that should have been included a long time ago. For years other phone OS's have been able to multitask. Even Symbian can do folders. Changing the wallpaper? Come on. It really took them 3 years to figure that one out? I think the whole thing is just slick marketing strategy. Jobs can then promote "folders" as a big breakthrough... I personally have no use for the JB applications or capabilities, but I can understand the frustration of those technophiles who can't stand being held back in using their devices, at the behest of Apple.