I believe open source is the right way to do software. If it weren't for open source I certainly wouldn't know as much about computers as I do, and I'm certain it will teach me much more in the future. Plus, we wouldn't have Linux and therefore wouldn't have Android! So, it only seems right that AxDroid also be open :) In theory, you can now build AxDroid (if you have all the tools setup) with the following:
git clone git://github.com/paulburton/axdroid.git cd axdroid ./build.sh
I'm testing building from a clean checkout now, if you hit any problems in building then do let me know. This is the current script as I'm using, and will be updated as I go, so please don't use the scripts I posted a while ago as they're missing certain things.
EDIT 2010-08-29: Fixed git URL