InformationWeek is reporting that a temporary RFID tag shortage looms on the horizon.

For instance, Alien Technology is temporarily sold out of class 1 tags:

"It takes two to three months to produce semiconductor-based RFID tags, says Tom Pounds, VP of corporate development for Alien. 'I think [customers] hadn't really believed RFID vendors when we told them earlier in the year that now was the time to order.' Alien anticipated the problem in the summer and ramped up, Pounds says, but orders have been beyond even its most aggressive forecasts."

It sounds like lots of big players have finally gotten on the bandwagon.