I was a huge fan of Savage 2 for quite a few months.
The game itself was pretty sweet, and when they added full voice chat (previously only the commander could chat, and the chat was often buggy) the game just got better.
S2 Games makes good stuff, supports open source (Savage 1 source was released after Savage 2 came out, and the community updated the game quite a bit), and make good games.
They have really, really sucky marketing though, so expect to hear about the game on geek friendly sites like slashdot, but if it's anything like there previous games, the player base will be a few hundred players.
On the plus side, a large percentage of those players would be able to make UI interfaces, maps, and the usual stuff that normal players can't.