Are the apps usable? The jargon seems intentionally impenetrable. The editor of that document should be shot every time they used an acronym. Like i get the DOD is a profitable dick to suck but this is just embarrassing for a document intended for the public.

Anyway can you link the source? That's presumably the useful half. The marketing bit doesn't add anything.

I don't care how usable they are, this is the DoD and NSA-approved mechanism for conducting classified conversations and viewing classified data on mobile devices. The adversaries here are other countries who are very good at what they do, security is far more important than convenience.

As for further research, there's plenty online about his programme and these devices. Feel free to Google it yourself. You're asking to be spoonfed.