what sort of project did you have in mind that would be easier with an open source mechanical CAD package? I guess I'm trying to understand the scale and scope of such a project and what sort of CAD you would need (2D/3D/both)?
Both. My own project is CandyFab, but there are a lot of other cases out there where such a thing would be helpful. The Openmoko design files are released in Pro/E, for example-- not exactly free software.
It never seems like a project is really "open source" if you need a $1000+ piece of software to open up the design files.
I can say that two of the kits in that list (which I designed) *were* designed with gEDA and have the pcb design files released. I don't know for certain if any of the others are.
I *really* wish that there were good open source CAD tools for mechanical applications as well-- it would make a lot of other projects easier to release as fully open source.
Real computer scientists like having a computer on their desk, else how could they read their mail?