What are you waiting for, nugget?
After four years in development, this little gem is released. You get to fly in a Viper, blow up Cylons, and escort your battlestar and it looks and plays beautifully. It is built on the FreeSpace Open engine, a community-developed extension of FreeSpace 2's engine, so it is fully moddable and includes a mission designer for your own missions and campaigns plus all the necessary debug tools. It runs on Mac and Linux, too, so you have no excuse to ignore it.