Tech Side of RFID (Score 1)

This proposed use of RFID raises some very interesting side issues. The first is RF pollution / saturation. Are these companies going to by custom RF ranges (very expensive!) or load the public frequencies?

And with the great numbers of RFID devices that are being proposed, how will channels be shared? I am doubting that these pieces of paper are going to be intelligent enough to run some sort of sensing protocol to prevent stepping on each other's feet.

The network infrastructure is going to need to be impressive. I doubt these RFIDs have much of a transmission range if they are being powered by RF. Are stores going to be placing access points on each shelf in a store?

I guess that I really am a geek, since I find the technical challenges to RFID to be so nifty. As for the ethics of RFID, I will leave that to other posts on this list!