Miyamoto was in New York for the launch of Wii Fit and it seems that he gave quite many interviews. Here's a link to the one in the New York Times. It's more like a portrait than an actual interview, but it gives some insight to the creative process behind Miyamoto's games. There are some surprising statements from the journalist, such as "There is nothing objective about why a goofy guy in blue overalls like Mario should appeal to so many, just as there is nothing objective in how Disney could have built a company on talking animals." That is quite puzzling, since there is such a long literary tradition of talking animals that can definitively explain Disney's appeal. And by long tradition I mean really long (26 centuries since Aesop). Interestingly, the article suggests –based on Miyamoto's claims– that the appeal of Nintendo's characters is mainly due to the gaming experience and mechanics. That may be true for Miyamoto's games, but it is a stretch to think that it applies to games in general. In any case, it's great to get a peek into the mind of one of the brightest artists of our time.