official launch is said to be august 24th and will have 120gb hard drive, HDMI etc.,
also theres supposed to be a army greenish one for the launch of halo 3.,

elite questions and answers:
http://www.joystiq.com/2007/04/27/xbox-360-elite-qanda/


http://www.joystiq.com/2007/07/11/european-xbox-360-elite-coming-august-24/

E3
http://www.joystiq.com/2007/07/10/engadget-and-joystiq-live-from-microsofts-e3-2007-keynote/

its been no longer a rumour for yonks