Glad to read this thread, as I've been wasting a fair bit of time trying to mess about with various cloud-related things. No documents seem to have synched,
myname@me.com doesn't seem to work for sending emails (but I have managed to receive some), find my iPad isn't working (but it's fine on the iPod Touch), my password for me.com is rejected in Mail and when trying to log in to iDisk from iOS Numbers.
Sure some of this is my own lack of knowledge and confusion over the transition from MobileMe to iCloud, but giving up now, I'll try again next week sometime. My brain hurts.
But we've got various different names - iDisk, MobileMe, iCloud, me.com - all floating around in applications and on Apple' website, and all seemingly current. It's no wonder that people are confused.