Check the full post for UX issues. Another iTunes topic to consider: why is there not more controversy about the fact that iTunes is such a resource pig that it routinely causes PCs to overheat?
Almost every year, Apple releases a new version of iTunes with some new feature. Last year it was Home Sharing. This year, it’s Ping. Apple also usually tweaks the UI, many times creating a backlash. This year Apple has outdone itself.