NCL interviewed Shigeru Miyamoto, Takashi Tezuka (the game's producers), and Yoshiaki Koizumi (director) after the launch of Sunshine in Japan last month. Nintendo.com, being considerate of all us that speak English, translated it and put it up.
There's so much good reading in it, we don't even want to put up a snippet of it. You should just stop reading this and get on over there!