pbLua beta 2 is available for download.
As the author, Ralph Hempel states
"This one has many of the missing things such as Bluetooth, floating point, and bitwise logical operators, as well as a more streamlined and Lua-ish API for the NXT specific functions."I've written some small guide that describes how to install and configure pbLua and how to download and run pbLua programs to resp. on the NXT brick.
Try it and post your experiences here as a comment.