> Or are there other similar projects? There are at least half a dozen somewhat related projects: nginx_lua, tir2, luajit.io, luanode, tarantool, lusty, plus a

> Or are there other similar projects? There are at least half a dozen somewhat related projects: nginx_lua, tir2, luajit.io, luanode, tarantool, lusty, plus a bunch of libuv bindings. And yeah, a single lua 'killer app' could do a lot for the language's popularity (elua comes close, but is a bit niche).