This sounds like a very great idea. I'd be interested in helping to create something like that after I've given up on my current project =P.
I would suggest adding a coding forum section, so after one has begun working on a project they could get help on the same site, although that would not be the focus of the site, as it is on this one. Also, I would add a finished projects section, which would be the opposite of the "Graveyard". It would contain all the finished projects, links to them, lists of the participants/tools used, etc. Another cool feature would be "Featured Project", or project contests. Like the "CF Helpful Member"
awards on this forum, there could be "Best Project" awards or something of the like.
And, as a parting thought,
to Coding Forums!