I saw this mentioned on Tara Hunt’s HorsePigCow:

SocialNetworkDevCamp will focus on API and Widget development from Facebook, Twitter, Pownce, Linked In and others. The camp will also start the process of identifying open APIs and data structures which would facilitate the creation of open standards for social networking.

It’ll be taking place Richmond, CA, but it would be cool to have something similar in Philly.

In my latest bloglines review, I also noticed a post about marketing Facebook apps, which sounded like good advice. I don’t have a Facebook app to market at the moment, but maybe when I get around to it…