I'm not saying it won't happen, and there probably exist certain workarounds, but this is the reason Ogg Vorbis took forever to catch on (for example). It doesn't even infringe any patents as far as anyone can tell; it was only the fear that maybe it did that stopped it from getting adopted in hardware. I'm sure a deal might get worked out with Creative, but as far as I understand it they've granted id Software a license to use their patent in Doom 3 as long as they continue to support Creative's EAX standard in their games.
Obviously that would be impossible to ensure in an open source environment.
Obviously that would be impossible to ensure in an open source environment.