Uhm...
You are kidding right? The HDMI spec has bandwidth to burn. 5gbps to be exact. A full 1080p video signal and 7.1 channel sound don't use nearly that much (roughly 4gbps).
It's got room to grow.
http://www.anandtech.com/multimedia/showdoc.aspx?i=2321
http://www.audioholics.com/techtips/...rfaceguide.php
