Wal-Mart cancels 'smart shelf' trial | CNET News.com

"Wal-Mart Stores has unexpectedly canceled testing for an experimental wireless inventory control system, ending one of the first and most closely watched efforts to bring controversial radio frequency identification technology to store shelves in the United States. "

Wal-Mart lost its nerve, prefering instead to focus on RFID in warehouses. Several UK chains are still pursuing package level tagging tests. Looks like this is still several years out for mass adoption in the consumer goods market.