On Mon, 23 Jan 2012 22:40:08 +0000 (UTC), "Adam H. Kerman"
wrote:

wrote:

In the US, there is a credit card feature called "Blink" (Chase Bank)
where one just touches the card against the reader and the charge is
instantly posted. This is faster than cash or conventional credit
cards. Some big chains accept this, like McDonald's, CVS drugstores,
and the Wawa convenience store chain.

Proximity card. A tiny transponder and chip are built into the card.
RFID technology.

The major German and Swiss cities with S-Bahns and/or U-Bahns (like
Berlin, Hamburg, Munich, and Zurich) do this with paper tickets and
cards (I think some with photo-id) that are read by roving inspector.
POP obviously works even on heavily used systems. At least in some US
cities like San Diego, California and Newark, New Jersey, the legal
framework is available for it to work in the United States. Go
Transit in Toronto also uses POP.

Clark Morris