The video doesn't quite show what is the great features that Hotknot delivers while NFC couldn't. To me, it comes down to the choice between literally touch vs proximity. I prefer the latter that NFC delivers.
On the other hands, BLE is aiming the eWallet market as well. It might be interesting to compare all 3 techologies and rate their pros and cons.
Drones are, in essence, flying autonomous vehicles. Pros and cons surrounding drones today might well foreshadow the debate over the development of self-driving cars. In the context of a strongly regulated aviation industry, "self-flying" drones pose a fresh challenge. How safe is it to fly drones in different environments? Should drones be required for visual line of sight – as are piloted airplanes? Join EE Times' Junko Yoshida as she moderates a panel of drone experts.