So I am just curious to know, if I pay a developer to add my UDID number to his account and then I install the beta version and everything goes ok, for the first couple of weeks. When beta 2 or 3 or 4 comes out and say he removes me from his account I will no longer be able to upgrade as I will get an error from apple because my UDID isn't in his account anymore because he removed me, which I have heard does happen, will I have any problems going back to 3.1.3? Is it difficult to do once you upgrade? Or can I just keep the current beta that I'm on till the official release, as I've heard that the beta's do expire. Any ideas???