A couple of years ago I found myself with an open afternoon in London; I visited the London Science Museum and happened into a lecture on a variety of topics given by Kevin Warwick. I spoke to him for some time after the lecture and bought his book, which detailed his experiments, including implanting an RFID chip into his forearm. (That my current venture is looking carefully at RFID has nothing to do with Kevin, by the way. It is always fun to wonder about those odd connections, though.)
This morning I stumbled across an account of another guy who’s had a chip (technically a TI transponder) inserted into his hand and is experimenting with access control. He’s a computer consultant in Washington state and has been interviewed on public radio and profiled in a body mod magazine.
(BTW, this blog post implies that Amal implanted the transponder himself. But if you read his own notes you’ll find that he had a doctor do the surgery.)