My prediction was that their answer would be 'We made a good game', but there are actually some decent tips. Most of it is common sense, and a lot boils down to 'you have to love both playing the game and supporting it', but the rest is still worth reading.
I posted it because I feel like a lot of the advice they give in the post is applicable to a lot of the things people here do. A number of the points would be directly applicable to selling apps on the iPhone marketplace, for instance.