A key difference is that the NES was exclusively a gaming platform, while the iPhone isn't. Anyone who picks up a yen for gaming on Apple's platform is going to have to jump ship to the PC or a console to get much more complicated games. And there's nothing wrong with that.
As for the limitations of a touchscreen, there's this:
Unfortunately, it doesn't look like much and costs $75. Apple should put their zeal for polish to work and embrace the gamers they have by making their own controller add-on.
As for the limitations of a touchscreen, there's this:
Unfortunately, it doesn't look like much and costs $75. Apple should put their zeal for polish to work and embrace the gamers they have by making their own controller add-on.