A lot! Isarmatrose has built a wonderful website,
Some people have started working on the knowledge base, Lannister does some logo contests at the moment and I have written
my last update and my plan for the this month in this post https://bitcointalk.org/index.php?topic=1396233.msg14572989#msg14572989. Right now, I am working on the protocol as I have written here: https://bitcointalk.org/index.php?topic=1396233.msg14753233#msg14753233 (actually two posts above this one).

I will make the new git repository public as soon as I can.