We ran a story earlier this week on our research on Wal-Mart's RFID program timeline, from its start in June 2003 to last week's announcement by Procter & Gamble that it was ending its test of promotional display tagging with Wal-Mart. (See Looking Back at the Wal-Mart RFID Time Line.)

That story included a link to the image below that lays out the timeline more graphically, but we thought it was interesting enough that we would make it our graphic of the week nonetheless.

There it is. It has been an interesting journey.

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