They don't do that, but they do put really old Windows Mobile phones and low end symbian phones are in the smart phone category. Some of these phones (that account for a very large market share) most people wouldn't put in anywhere near the same class as the iPhone.
In the computer category, there is a huge difference between selling a netbook and a mac pro ($300+ vs $3000+), but they are in the same classification. If anything this just tells you that these types of statistics really don't tell you much anyway. It is kinda like comparing the Lexus brand to the Toyota brand... nobody would ever do that in the auto industry... but it happens in electronics all the time.
I am going to have to dispute you on the ereader front. It is the best ereader I've ever used and the only one capable of handling and searching reference books easily. eInk books are not too bad for reading fiction, but they are unusable for anything else. Apple also has a nicer 3rd party store stance. You can buy epubs or pdfs from any drm-free store and they look great. They also have readers for Amazon, B&N, and Borders if you own another device that you primarily use for fiction while reserving the iPad for non-fiction. In that case, the only advantage is the eInk for a slow front-to-back reading. Anytime you need to search or want superior text and graphics rendering, the iPad is much better. I also think the iPad is closer to a computer then an eReader because it is a multi-function device.
