Hack let you convert encrypted Mobipocket files that were intended for another reader so that that work on Kindle.
The Kindle has a built in cell receiver so that you can wirelessly browse, preview and purchase books using one-click.
Use Mobipocket software to convert PDFs to that format so you can read them on Kindle.
The Kindle is already able to read more than just Amazon DRMed content, it can handle a number of formats.
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.