Patches are welcome. Please generate your patches in `unified diff' format (diff -uNr my-copy your-modified-copy) against a copy of the source tree (see section 1.2) and send them to me via email.
If you wish to work on implementing the archtecture in this document, please drop me a line so that I can arrange who works on what to avoid duplication of effort. There are lots of modules that you can create in isolation.