When I upgrade to iOS5 next week, will I need to create a new email address to use all this new iCloud stuff? Or does that only apply to the email, contacts and calendar side of things? I only ask because a few years ago I tried MobileMe, which worked ok, but I used gmail for my apple ID (buying apps etc), with no way to merge accounts. I'm not the sort of person who wants, or needs, to be managing two email accounts. So will photo stream, docs, iTunes, and message (not strictly icloud) all work with my current email address?