Smart cards

The largest demand, though, will come from government agencies, like Spain's Social Security Administration and the Czech Republic's Healthcare Ministry. China, with a population of 1.2 billion, is considering a national identification card using this technology, said Waqar Qureshi, Motorola worldwide marketing manager for smart-card chips.

Been around for quite a while - expensive part is not the cards themselves ($1-$3) but the card *readers*. Warmly, Padgett