From the "Just Because You're Paranoid Doesn't Mean Their Not Out To Get You" department: e-Week has an article discussing the market rising up from concerns about the potential for invasion of privacy due to RFID technologies.
From the article:":...retailers are fighting the desire to gather more sophisticated and usable CRM (customer relationship management) data for fear of the possible backlash from privacy advocates. This state of affairs prompted one Rensselaer Polytechnic Institute grad student to use some simple ingredients to craft an RFID-proof wallet. ... The wallet is just one avenue. What about a device for a shopping cart that deflects or confuses any RFID inquiries, sort of like torpedo countermeasures for the shopping aisle? Or perhaps a room-wide device to prevent household snooping? When it comes to consumer confidence, we're engaged in a clear perceptions opposed to realityattle. Even if no retailers ever decide to use RFID for tracking products or credit cards that consumers are carrying, the fact that they could theoretically do so is enough to cut confidence."
So is this a jutifiable concern? Clearly the next frontier for RFID is moving it more to the consumer. Do you think this is a good thing? Post your comments below.