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The Paper Passport Is Dying
(www.wired.com)
This is a most excellent place for technology news and articles.
They do in the US if you live in a border state, but it's only valid for Mexico/Canada. Think the idea is having space for physical visa stamps, but I don't see why they'd prefer that to a digital visa tied to something unique in the passport.
The passport card is good for boats and driving, not for flying.
Right, which is likely why they're only offered in border states.
Nope - they're available nationally
As the other commenter said, any US citizen can get a passport card. They also double as a Real ID for federal identification.