Is anyone else running this project? I just added a couple of machines. It looks like a fairly low bandwidth, network mapping, project. It doesn't appear to use any measurable CPU resources. FWIW, I created a Team MacNN there. I wasn't able to get the OSX application to work. But the Windows application works fine. It does take a couple of retries to attach to the project.
http://www.netdimes.org/new/