Self Replicating Rapid Prototype Machine

It seems to me that this article is full of handwaving, but here goes - apparently, a doctor of Mechanical Engineering in the UK has come up with a self replicating rapid prototype machine, you know, the ones that can create anything by building up layers of plastic? His plans are to eventually market such a machine to developing nations to help create low cost products. Pictured is a robot that was created using the machine.

More interesting, is that, "To encourage that development, Bowyer plans to make the design of the RepRap available online and free to use ... "

Slashdot coverage of the topic is here.