>=20 > On a related note Walmart is going to start pushing=20 > for RFID tags on all products it sells, that'll mean when=20 > checking out you won't even have to remove the item from the=20 > shopping cart! TTYL >=20 That seems like a challenging task. If you have a shopping cart with 100 items, wouldn't they all transmit at once when they passed through the scanner? What is the limit to the number of simultaneous RFID tags you can read at once? Alex -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.