That is a very interesting approach to task management!
One of our goals is to help organizations, corporate groups, and B2B increase the privacy of their communications.
We see it as a huge concern that a lot of businesses and informal groups use Google and similar services, and those service are scanning every email. A lot of companies don't even realize that Google has a wide-open back door into every confidential and proprietary communication.
I'm seeing why you'd be interested in securing communications for your approach to task management. We should chat more.