I'll write this entry in English after a long time.
I don't have anything to say.
I found a bug or something in my kindle app for iPhone. I couldn't open Master of the Game, and then the app dies. I contacted Amazon support center and reported the problem. The incident haven't solved yet. But I know they are struggling to solve it.
Amazon's attitude is likable for me as opposed to Apple. After I call to Apple support, I'm usually upset. But Amazon never make me irritated.