We're working on splitting this out into a reusable platform for writing lightweight host-based agents. Luvit works out fairly well for this - our monitoring agent runs in around 5mb resident memory, works on Windows (although we haven't released that yet) and is relatively easy to code on.
Shameless plug: if this sort of stuff interests you, hit me up, my email is in my profile.
We use Node.js on our backend, were involved in some of the work that led to libuv being split out from node core, and were already planning to use Lua based on our experience with the Cloudkick agent. All told, when we saw what Tim was doing with luvit it seemed like a natural fit.
Blogging about your experience using it would probably get you some decent traffic, too.