A story from Reuters that says one of the biggest hurdles facing RFID tags — the widgets that store information about products — is that they still aren’t very good. “The tags fall far below the 99 percent reliability rate of UPC tags because of the difficulty of transmitting clean radio signals,” the piece says.Many of the companies currently making them may not survive long enough to see the market emerge, apparently. “We are at an incredibly early stage of this technology and what it is actually capable of doing. All the promise of real-time supply chain visibility is just that. It’s promise,” IDC analyst Christopher Boone said.