I stumbled upon an interesting site today:  ohloh.net (recently acquired by sourceforge).  I haven't had a chance to look through it much yet but I noticed that the GIMP developers were listed in it.  Actually, it was Martin Nordholts blog that pointed me to it.

I'm preparing a new release of xnotesplus, completely rewritten in java and renamed xnotesng, and have been considering pushing the project to SourceForge.  I may want to also add it here, although sourceforge may do that for me now.  Just one other avenue to expose the application beyond freshmeat.net.