Books published by Macmillan mysteriously poofed from Amazon yesterday. The reason, according to the NYT, is that Amazon is punishing the publisher for arguing that the price of Kindle books should go up to $15. This won't end well.
It feels like a repeat of the same shit Universal Music, and later, NBC Universal pulled with iTunes, trying to counter the leverage Apple had because of iTunes' insane marketshare. Same situation here, really: Content provider wants more money/control over their content, fights with the overwhelmingly dominant, embedded service that's selling the content. Last time, everybody compromised and walked away most happy: Universal and NBC got more flexible pricing, iTunes got DRM-free music and more TV shows for its catalog to sell.