I haven't seen this mentioned here - thought it might be useful. Someone has released a Lua-to-ODE binding at
http://sourceforge.net/projects/luaode . Right now it appears OSX-only, but it comes with source so it shouldn't be too hard to write a Linux makefile. It supports ODE 0.7, with plans to support ODE 0.8 as soon as ODE 0.8 is released/stable.
It seems to have been released February 2007.
I know of a couple of unreleased Lua-ODE bindings, but this seems to be a "released" project with a maintainer, so hopefully this project will stay current with ODE. Of course, ODE's development hasn't been very fast recently, so keeping current with ODE shouldn't be so hard
