A newly discovered Gamestop and EB Games listing reveals an Xbox 360 HDMI cable, a rather ponderous product considering the fact that the console does not have the necessary port to accomodate such a miraculous transmissive device. Is it an expensive adapter that automagically goes from the bulky 360 AV connector to an HDMI output? Feel free to entertain such a possibility, so long as you remember that Microsoft wants nothing to do with it. After constantly pestering them for a comment, they informed us that the product was not one of theirs and that "Microsoft has not announced any additional support beyond component video for HD output. MS is watching the market closely and they will continue to evaluate any options in the face of consumer demand."
Unless the face of consumer demand becomes crumpled in a furious frown regarding the lack of HDMI support, don't expect this retail listing (and they're usually so reliable!) to signify a change in Microsoft's strategy. Back in July, when handed the rumor of a new Xbox 360 equipped with an HDMI port, Microsoft promptly tossed it away and insisted that "you don't need HDMI for HD gaming." We fully expect the HDMI rumorang to return again sometime in the future -- catch it here when it does.