This is one of those things that sounds totally awesome for about ten seconds. Check out this announcement for your own ten second thrill:

Introducing Myst for the iPhone™ and iPod touch®. The complete worlds of Myst, in all its original elegance, in the palm of your hand. Remember how the surrealistic island became your world? The note, the garden, the books, the pages, the brothers, the choices? Now Myst can become your world no matter where in the world you are.

Okay, now that the concept is out there, consider the prospect of actually replaying Myst. The note, the garden, the books, the pages, the brothers. Yeah, all that. Again. And the choices? My choice would be to play something because it holds up and not out of nostalgia. But, yeah, it's on the iPhone, which is actually one of the main advantages of most iPhone games.