Hi,
I'll see what I can do. Unfortunately it may be difficult to make the entire thing open source and open standards as with the exception of BeerXML there are not great standards for exchanging some of the data.
Also - its relatively easy to modify BeerSmith to transfer the XML data up, but it seems to me that the bulk of the work is in actually developing the recipe site (server, database, etc), making it efficient, and having it integrated a bit with BeerSmith so someone can easiliy access and share the recipes.
I'm a big fan of open source - in fact I put together the first iterations of BeerXML and did a lot of work to make it available. However, I've had only limited success in the past attracting contributors to large open projects. At the moment I can't even find a volunteer to help moderate on BrewPoll - which is a pretty simple task compared to developing an open source recipe database.
Finally - I'm torn a bit - I've been working towards BeerSmith 2.0 (which is a massive project). I am interested in hearing if people are more interested in an online recipe database or BeerSmith 2.0. I suspect the latter, but I could be wrong.
Cheers,
Brad