[OT-ish] WebM/Ogg VP8 streaming

Hi all,

Sorry for the VP8 question on the Theora list, but I think all the 
relevant people are here :)

I'm using Icecast to distribute some Ogg Theora streams at the moment 
with a view to adding VP8 along side these in future. Ideally I'd just 
use Ogg VP8+Vorbis, I know there is a mapping for this already but how 
much support from the browsers can I expect for this configuration?

-Phil