This is a super simple module written as a C++ binding. It does not show how to handle async io, but at least it illustrates how the code hooks into node and v8. This is just a place to start...
Download, build and test instructions:
$ git clone git://github.com/lupomontero/node-cpphello.git
$ cd node-cpphello
$ node-waf configure build
$ node test/cpphello.js
More info here: http://lupomontero.e-noise.com/blog/writing-node-js-modules-in-cpp
A more detailed article on the How To Node website: http://howtonode.org/how-to-module
Other basic examples (using async io):