My thoughts are that I'd better speed up getting my latest book ready for the Kindle store.
I am a big fan of competition when it leads to multiple options and lower prices. I admit I am slightly worried about the possibility of a monopoly emerging, but Amazon is doing well because they are offering good products at lower prices, so I can hardly begrudge them success. I think the end game is going to be free hardware, and companies will be competing on the delivery of content. Of course Amazon looks to be well-equipped for that as well.