This is very sad news. As a Nintendo fan, I was not as familiar with him as I probably should have been. What I do know is that he played a very important role in the company that has brought me many hours of gaming enjoyment, and for that he deserves my thanks and respect.
"On my business card, I am a corporate president. In my mind, I am a game developer. But in my heart, I am a gamer." -Satoru Iwata