Apple has revealed that it is starting to transition users away from the me.com email addresses and Apple IDs available through MobileMe to new @icloud.com addresses. In its iOS 6 beta 3 change log, a portion of which was posted online by MacRumors, Apple says that “icloud.com email addresses are now available for iCloud mail users. Users signing up for new Apple IDs, or enabling Mail on their iCloud account for the first time, will automatically…