These are just a couple of suggestions off the top of me head.
So some of them maybe crap.
OggBox (A play on musicbox or beatbox )
OggAmp (Speaks for its self)
V.A.M.P (Vorbis Audio Media Player)
Y.A.O.P (Yet Another Ogg Player) Yes, I know this ones crap.
OggPlay (No comment ) They do get worse, But i think this may have already been use.
Thats it for now, More to follow, Maybe.
Trooper