The premise is very simple - it is to use the existing US government's person identification infrastructure to authenticate PGP keys, thereby extending the infrastructure's identity validation methods into the realm of e.g., email.
The products and services mentioned earlier could be anything from a certified
mobile app for a Notary Public (or some other ministerial official) to a key management and communication policy support system for a hospital, bank, university, government agency, etc.
It really is a very simple idea. The core technical foundations (e.g., GnuPG) have already been designed, built, and exercised in the world. As far as I know, the tech works. Granted, much is still needed to associate PGP public keys with government issued ID's in a sufficiently valid manner but most of what still needs to be built is in the domain of policy, business, and administration.
It seems like there is some opportunity for entrepreneurs who have experience in secure systems configuration and administration. </sales pitch>