From some viewpoints, it's been pretty much all good on the radio frequency identification (RFID) front as retailers such as Metro and Wal-Mart have reported impressive results from the use of the technology. A report in The Wall Street Journal, however, says all is not well in RFID land as suppliers continue to express concerns about the investment in the technology while pointing to less than satisfying returns. How "slow" should trading partners be proceeding with RFID projects if that is the prudent course to take?

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