Beagleboard xM Audio

Hey guys,

I was wondering if I could get some clarification on to just what we
can do with the McBSP header on the Beagleoard xM, and the audio
capability of beagle given the access that we are provided through the
TPS65950. Am I reading correctly that we can only get at a maximum 2 x
Stereo outputs? I come to that conclusion by:

1. "I2S Right- and Left-Justified Data Format"
2. Existing Jack onboard.

Has anyone had any experience with this that could provide more
insight?
My ultimate goal is to at the least be able to reach a minimum of 4.0
audio, perhaps more.

Thanks,
Bob