I've been working on video games for 20 years and from my perspective Minecraft is not a one hit wonder, it's the coming of age of a genre. It reminds me of when I first saw Doom running. It was graphically beautiful for the day and a real technical accomplishment. Although it was by no means the first FPS, it was a huge hit and drove a lot of other companies to go into the genre. That industry has peaked today with Call of Duty being a $1b franchise.

With Minecraft, Notch took some really good games and put them together in a way that had much more Universal appeal. I wouldn't be surprised if the genre expands and matures and takes 15 years to play out. I think it's likely Mojang will lead that process.