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>>>Even Swipe cards are becoming old hat - more and more contactless card readers appearing here. Most of my cards already have the functionality built in.
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>>We start to search for full metal wallets, Everbody with the right antennae can read those stuff everywhere ,,, (ID card comes with IFRD as well)
>
>Daughter's friend here has a little startup which designs these wallets... they seem to be doing fine.
>
>One thing that always confused me with these readers (even barcodes) is how do they know the context? They register the presence of the tag in the vicinity of the reader, but it still takes a human to ensure that it arrives from the correct direction and then goes where it should. Imagine delivery where the goods are brought to the reader and then taken back to the truck. And then someone will claim that it must be in the warehouse because the RFID makes no mistakes...

Every system will be in its context.

Imagine a warehouse where one man checks to delivery with a PaperComputer and an other just moves it back. Same result ....

Direction for sensors is old stories. Just take two of them, there will be one and then the other one ....