For years, Apple's Messages app for OS X (previously known as iChat) has offered support for the aging AIM messaging protocol with mac.com and me.com IDs.
Then on Monday, as it said it would, Cupertino has ended AIM support for mac.com or me.com accounts in Messages on Macs running OS X Lion 10.7.1 or earlier.
However, it now appears that the company has actually phased out support for AIM accounts for everyone, regardless of Mac OS X version, and without giving users a heads-up...