Apple released a new version of iOS 6 beta 3 today, and in the changelog for that release, there's a note that the transition from me.com email addresses to icloud.com email addresses for iCloud users has begun. Users that are signing up for the first time will get icloud.com addresses, and anyone using iOS 6 beta 3 will be transitioned over to the new domain with their same email name.
Already, a few users are calling foul, since me.com is obviously a shorter name to type out than icloud.com. But this is the transition Apple has been planning for a while, and so what's done is done. Perhaps Apple will finally