By SSSS I assume you mean Shamir's Secret Sharing Scheme?
No I was not on any conference calls and I do not work for microsoft directly. I am just a windows developer with friends/contacts there. I typically try to bridge the gap when I find interesting technology that does not have full Windows App support and NFC ring is my new toy.
I was a little quick to post this question. After reading a little more it seems like it will be pretty simple to create a UWP App utilizing the new Companion Device API to unlock windows 10 devices. Potentially just utilizing the UID of the ring. However the Companion Device API is not a completely public API meaning you need to email microsoft and get registered to get approval to utilize it. I briefly read some posts and the kickstarter page that currently exists for creating something similar but I am not really aware of what technology is being used to do it. If there are no plans for you guys to try this any time soon then I was going to attempt to get registered for creating a generic UWP NFC app that lets you unlock windows utilizing the UID of any NFC device (which of course includes the ring). This is still all in the pre-release phase but microsoft is going to release it publicly with the Anniversary Update which i believe is happening sometime in early August.