As a developer, I want an easy way to find people who are interested in partnering with me to make a game. Specifically, I want to find artists, and story tellers who can improve the things that I'm not as good at.
RubyGameDev.com should also be a resource for connecting with people to build games together. Providing a "job board" type of thing where people can list "want ads" (for free) would be very useful. The only barrier to success would be exposure, so this feature might need to wait until RubyGameDev.com becomes more popular.