HI,
I do it similar to that on my two iPhones.
I had an Apple ID (based on an old Dial up account.)
I linked this to iCloud and got an @me.com address as well.
Although iCloud, iTunes and logging in here as Apple Support Communities all end up at the same place whether I use the dial-up email address or the @me.com one, the iMessages server treats them like two separate IDs
One phone then uses thre @me.com name and the other uses the old Dial-up ID
Now that Apple have also given me an @icloud.com name I could use that on my iPad.
8:24 PM Tuesday; December 11, 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