If rumours are true that US overstocks of Edge-based iPhones are going to go on sale here in the UK next week, how slow would they be compared to the eventual 3G models? All I would want to do is get my email, browse the web and view the occasional video or other piece of media. Is EDGE really that slow? Is 3G worth waiting for in the case of a user like me? Is 3G data service more expensive? Will EDGE work all over the world?