You're thinking of a local/fat application? Something that is
off by the completion of firstboot?
Is more or less what I had in mind.
What about putting that into the welcome page for the browser, and
auto-starting Firefox? Whatever that page looks or acts like, it could
have a nicely visible "New Users Start Here" widget that kicks off what
you are describing.
That would be a simple way to achieve the launching of it I would
assume, or possibly an option at the end of the firstboot, like you
It sounds like a confluence of tool and content/media creation, so it is
like an interactive tour.
I think that might be the most useful way for it to go, but it could
even be made simpler and just point to the essentials that new users