Actually yeah. SpinDashMaster from TSC here. We do a lot of competitive play in Sonic games and rely on the Gens emulator (and also the Gens+/ Gens movie mod of it for recording) heavily. One thing we're working on, as luck may have it, is to have some regular multiplayer gameplay.
As of 2008, I had discovered OpenKaillera and had been using that. Its got two really great features -- one of which is a .krec recording function, and the other being a P2P mode, which eschews the need for a server altogether!
Using it is simply a matter of replacing the inherent kailleraclient.dll with the new one, so that's simplistic.
Only thing is, their homepage doesn't exist anymore. You'd have to google search to find it.
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