There is now a public repository set up at http://repo.or.cz (it's actually been there for a few weeks, but I hadn't gotten around to getting LuaGame ready for it). Instructions for getting it are located on the downloads page.
LuaGame is now finally licensed. I decided to go with the MIT license because I believe it provides the right amount of freedom for this project.
Unfortunately, my life is going to be pretty hectic for the next few weeks, so I'll be doing even less work on LuaGame than I usually do. Hopefully, July will provide some solace.