Behlendorf admitted that at least half of all the 129,000 open source projects on Sourceforge are dead--no one is working on them.
-- That word "open", Brad Grimes and Joab Jackson, 15 September 2006.
I think 'at least half' is a trifle misleading. I maintain SaVi. I'm the only maintainer and active developer; I do very little work on the program, it's of minority interest, received patches are rare, and I'm lucky to issue three minor revisions per year to keep it running and up-to-date with compilers and environments. It's about at the bare acceptable minimum level of maintenance and popularity for a Sourceforge project. But, despite my lack of work and the lack of interest and popularity, the SaVi statistics consistently show that SaVi is in the top 1% of active projects on Sourceforge.
Over 90% of the projects on Sourceforge are dead. Yes, that's at least half, but it's also so much more. Were Sourceforge a garden, a thousand flowers would be blooming - and a hundred thousand more would be dead and decomposing. It's a very long tail.
In other news, I've finished the user interface tweaks needed to make SaVi look good on Mac OS X. This is now available in the SaVi development snapshot.