I have, although I have limited free time to work on it right now. My 'market testing' page is here: http://openf.oarsum.com/ http://openf.oarsum.com/ The idea

I have, although I have limited free time to work on it right now. My 'market testing' page is here: http://openf.oarsum.com/ http://openf.oarsum.com/ The idea is that there needs to be a protocol such that I can friend you, even though you're hosted on a completely different server. I suspect that it's a difficult concept to wrap your head around unless there's something that you can actually play with (although it's not too dissimilar to email). Perhaps the Django/Python choice might throw people too...