May I ask if you are working for Apple?
It bothers me that you haven't understood any point yet.
To make it clear once again:
I've been using my *****@me.com AIM name for ages.
My sister only has AIM, since she has no device capable of running iMessage.
Now that Apple shut down MobileMe, I cannot login with that AIM screen name anymore.
However, Apple has somehow established a new authentification server that only iChat 6 can use.
This is how it must have been:
Apple IDs have always been available as AIM IDs, working in ANY AIM client!
The AIM account part's password was tied to the Apple ID's password.
But every AIM client is able to check on that password.
Now Apple shuts down MobileMe - that MobileMe server does not give any positive response anymore when an AIM client asks for the password.
BUT: Apple set up a new authentication server (possibly related to iCloud), which only iChat 6 connects to right now.
The question is: Why isn't AIM at least adapting this new authentication method on their web sites and clients?
So I could at least log in with my ID using AIM for iOS.
(Anyhow, it is related to AIM - AIM is not Apple! They link an account with the same name like the Apple ID with each other's passwords. Now Apple changed something inside that authentication process. AIM should change the password link from connecting to MobileMe to connection to iCloud instead. Then every AIM client - Trillian, BeeJive, Adium, Nimbuzz, etc. should be able to get a positive authentication result again.)
Can't you understand how angry it makes me that the ID I have been using for all times suddenly get's "shut down"? (In a sense that I don't want to register another AIM screen name, as all my contacts have my @me.com ID, which should stay like that.)