Correction: LuaJIT is not yet supported on consoles. I'm confident the remaining legal issues can be resolved soon.

Note this is referring to the high-speed interpreter written in PPC assembler which gives you a 2x-6x speedup over plain Lua. Not as good as with a JIT compiler, but definitely something to consider.

The JIT compiler will be disabled on the consoles for now. This is not the last word on that matter, though.