I’m going to say this one more time: a tablet is NOT an overgrown smartphone. An iPhone app with a 2X option is not the answer. A mobile site that expands to fill the bigger screen is not the answer. As a matter of fact, a survey from Usablenet says that thinking Smartphone –> Tablet is just wrong, wrong, wrong. The people they surveyed said online sellers and content providers would be better off going from Desktop —> Tablet, creating a similar or identical experience on both devices.
When asked what matters most, a combined 60% of respondents wanted their tablet experience to be the same or nearly the same as their desktop experience.