Once you are into programming (which you obviously are very capable of) you really should make a short TODO list and collect some people on google code repository, some git repo, or anything you like. About the PHP code base: you will need steadily an internet connection for using AW as a plugin in Anki to explore the cities etc., right? I suppose you already have a server for running a database including php code 
Good luck - and most important - have fun programming! \ø
Good luck - and most important - have fun programming! \ø