You may have already seen the FVorbis implementation of Vorbis in Flash 10:
http://people.xiph.org/~arek/pg/hx/test.html
This is a more integrated demo of the same approach:
http://www.omtk.org/js/demo-mod.html
The FVorbis implementation uses lower CPU on my system, but in any
case, this definitely seems like a viable approach to bring at least
Vorbis to many more people - especially when combined with native
support in Firefox 3.1 and the existing Java player.
--
Erik Möller
Deputy Director, Wikimedia Foundation
Support Free Knowledge:
http://wikimediafoundation.org/wiki/Donate