This is so great! I'm always working with STL's and always asking myself, "what's different in these models?" I'd love to see meta data and other 3D file types like VRMLs or SolidWorks parts included in the future as well.
SolidWorks seems really difficult to implement unless you're licensing a Windows server + SolidWorks software licenses or running wine and hacking up their dlls.. I would be curious to hear ideas on how to do it.
