Handibot is a novel design for a CNC device that you can pick up and carry to the job, allowing you to mill materials in situ. The creators, who've blown through their funding goal, have designed a tool that runs off apps on your mobile device that control it, and envision an open-source ecosystem of designs and apps that you can run through your own device.
A $2400-$3000 pledge will get you your own device (assuming that they ship -- this is Kickstarter, but then, the makers have a lot of relevant experience in manufacturing that are a good sign). One of the stretch goals will have them shift production to a national, distributed network, allowing people to make Handibots wherever they are -- Handibots can be used to make more Handibots.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.