Question for you +Mickey Mellen
if you used a book as your door stop, is it a book or a door stop?
I've had these same debates about native or web apps, and there is never a winner because it depends on the project.
Always remember, the solution can't always be one size fits all and the your mobile solution may need to be mobile optimized and responsive.
I'll answer both, especially since mobile sites now expand anywhere from 3“ to 10.1" screens.