http://news.bbc.co.uk/2/hi/technology/2334491.stm and www.quizid.com

A credit-card sized device, which could potentially be issued to thousands of citizens, is being heralded as a major breakthrough in the search for establishing secure identification on the internet.

...

Users are issued with a card and a personal code, based on a set of colour keys on the card. Each time they wish to conduct a secure transaction, they punch in the colour code and a random number is generated.

The card works in conjunction with the Quizid vault - a large collection of computers that can process 600 authentications per second. The system cost millions of pounds to develop.

(Oooh! six hundred! Impressive! :) I don't see anything on their site about the technology, but I do question if 4 colored buttons, with a probable pin length of 4-6, is worth 10-70 pounds per year..For that price you can get securid cards, which aren't nearly as pretty, but that's nothing Ideo couldn't fix in a week. Adam -- "It is seldom that liberty of any kind is lost all at once." -Hume