It's called CHAOS, and it takes unused cycles from any PC on your network, then harnesses them for use by an application which needs them.
It's a good example of a point made by several readers here the last few days, that adding new features to Linux simply makes Linux better, not more unwieldy. CHAOS uses the openMosix kernel extensions and adds IPsec encryption between linked PCs for security. That's partly because the original application for the creators, Pure Hacking, was to speed up security testing, but CHAOS can be used for any other computing purpose.
What would you use it for? If you had distributed computing available in your business or office, what big jobs would you want to do that you can't do now?
Let us know in TalkBack.