HI,
I understood that you wanted to use the @me.com Apple ID.
What I was saying was that Apple sent me and Email about the @icloud.com name and it was not added automatically to the Mail app or the Mail, Contacts adn Calendars part of System Preferences.
Separately I have checked out that I can use the @iCloud.com name as a Valid AIM name (Like @mac.com and @me.com ones) and I can.
AS you can see this did add it to Mail, Contacts and Calendars but only as a Messages app ID.
I have not linked them (the original ID I used to create the iCloud ID or the @me.com name I got at the time).
All allow me access to the iCloud web page, the iTunes Store and to be able to post here.
I also showed that I had "registered" for both the POP server and IMAP server fro my Google ID and had one turned Off in the Mail App.
Having said that if I visit the iCloud > Mail web site and bring up the Preferences > Accounts it only lists the @me.com and @iCloud.com names (And not the creating Apple ID ).
The @icloud one does seem to have become the "Send From Address if I were composing Mail here.
In testing from my Google Account to my @me.com name it does not get moved to @iCloud.com and neither does any return email. (Despite the setting at iCloud it keeps to the Mail settings).
7:50 PM Wednesday; December 19, 2012
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
iMac 2.5Ghz 5i 2011 (Mountain Lion 10.8.2)
G4/1GhzDual MDD (Leopard 10.5.8)
MacBookPro 2Gb (Snow Leopard 10.6.8)
Mac OS X (10.6.8),
Couple of iPhones and an iPad
"Limit the Logs to the Bits above Binary Images." No, Seriously