Sounds interesting, but still got a question "Why??"

I'm a bit divided here. First I think that using a mobile wallet on a phone is much simpler that making payments with these notes. People can just charge their mobile wallet, so that they don't need to be carrying a lot of money "on their phone", and they can then spend them just by scanning the QR code. It's much easier than carrying bills. Of course that I do understand that for some users, specially the elderly, this new way of spending money could be harder, so using this Physical Bitcoin system could help them. I don't see a great future on them, besides helping on a transition phase. They could also become some kind of cold wallet, so maybe they are aiming for that, I don't know.

Ok, I am intrigued by this. Will this work like the old Casascius physical bitcoins, where you have the private keys stored on the physical coin or card or will this be administered by a third party and this card will just link you to their internal database via the Semiconductor’s S3D350A chips?

So will the manufacturer of the cards be in control of the private keys or would the private keys be stored on the chip? The ownership of the private key is the most important factor in this technology.