I currently have a game on my iPhone called Hamster House. It's a very fun game and I love it. However, it showed up in my Updates category last night for some reason and when I tried to update it, the store said it no longer was for sale in the US App Store. I tried to search for it manually then, and it's no where to be found anymore. Now, why would a game just vanish like that? I don't think there is any reason why Apple would pull a game. So, why would a developer decide to pull a game off the App Store? Do they have anything to lose by letting it stay on there for sale? Do developers have to pay Apple money to have an app remain on the App Store?