Oh look... a blurry picture supposedly showing an Xbox 360 motherboard sporting an HDMI port.
True, or just someone having a bit of fun with Photoshop?
Microsoft have already denied that a future Xbox will be released with a built-in HD DVD player, but there's no word on whether this might be true.
Given that Sony's higher-spec PS3 will sport an HDMI port, I'd be surprised if Microsoft don't add one to their offering, but this picture being genuine? Could simply be a red herring.

From: Sony to double BRAVIA LCD TV production for growing European demand