the future of shopping?

Radio Frequency Retail is coming sometime in the future. Every product on a shelf will have a chip that can bounce radio signals back to an antenna, and help track location, inventory, and who is purchasing what -- and keep track of that information in databases. Test runs at a drug store in Cambridge, England, a Wal-mart in Oklahoma, and a Gap in Atlanta show a promising future for the technology -- if the prices of the chips become affordable. And, yes... there are some privacy concerns attached.