Hands-on session by Seb Lee-Delisle at Update 2011, building an Angry Birds clone for iOS and Android with Corona (which uses LUA as its scripting language)
LÖVE
LÖVE is an *awesome* framework you can use to make 2D games in Lua. It’s free, open-source, and works on Windows, Mac OS X and Linux.
The aforementioned Mari0 and Ortho Robot are built in LÖVE.
You might also want to check out some handy samples if you’re going to take a dive into LÖVE/Lua.