Being at home on a rainy day, but wanting to read some new novel that just came out, you can have it in seconds. This concept (not hobbled by DRM) is pretty damned liberating.
Use Mobipocket software to convert PDFs to that format so you can read them on Kindle.
There are converters available from Amazon and/or Mobi for pdf and doc files.
Devices like the Sony Reader, Cybook, and Kindle DO NOT have glowing LCD screens.
A revolutionary portable reader that wirelessly downloads books, newspapers, magazines and blogs to a crisp, high-resolution electronic paper display that looks and reads like real paper, even in bright sunlight.