A chip off the old block, or a whole trunk? (Score 1)

Like with all ideas like this. It's starts out sensably: "It's for a good reason" and "it's only for a few feet" Well that's with *todays* technology. Pan out a few more years (say 20) when RFID is common place. Well, in the meantime the burgeoning now-cashed-up RFID R&D industry has been "improving". Now it's no longer a few feet, it's ... You get the idea. Sure it *might* be benign NOW. But it won't take long before it's exended, more and more. It might sound paranoid, (and hey, that *is* probobly me :-) but time and time a gain has shown that this kind of technology losed it's original limitations over time. And if we're talking computing, then ...*rapidly*. Like in Orwell's 1984, it's citizens didn't realise they had lost most of their freedoms because they were taken away so incrementally and progressively.