I personally think Stanza’s market and Amazon Kindle’s market are totally different. You can’t honestly tell me that folks read long books on the iPhone on a daily basis. I admit that I have read a book or two on my iPhone when I have been on a trip, but the screen is very small, and I just don’t like the experience of reading on a mobile phone (no matter how shiny it is).
So should Amazon go Open source to compete with device such as the iPhone? I think they should. Having a community of developers contributing to the Kindle platform only helps, but Amazon doesn’t need to be the next iPhone. I don’t see any direct competition here, do you? Sure. Both of these devices may be competing for our cash, but I wouldn’t abandon Kindle to buy the iPhone or vice versa.