Kindle
In this project called "Taking Menorah Design into the 59th Century," an amateur hardware hacker uses the $8 commodity USB chipset to brew his own USB-powered menorah, then writes some code to get the shamas to blink arbitrary messages in Morse code.
Link
(Thanks Buddha!)
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.