The Keycard Shell is wonderful. Having a detachable secure element based on an affordable smartcard, usable with a screen, is genius.
I really like the project and hope it gets the recognition it deserves.
I am really interested to see how it is going to work, and I wonder if they Keycard Shell will be compatible with other cards (including Satochip).
I actually asked them that question with few others but I didn't receive any answer from them yet.
Maybe both of your companies can work together on some future project.