They are considering it for late 2006 or 2007 according to edmunds.
http://www.edmunds.com/insideline/do...ticleId=105694
I hope so I hate having wires in my front seat and who carries cd's anymore?! If you check out google theres lots of info for using after market stuff to play your ipod through your car audio. I mean if you don't want to wait for hummer.