Hack let you convert encrypted Mobipocket files that were intended for another reader so that that work on Kindle.
DRM is not to prevent other files from being readable on the Kindle.
The Kindle is already able to read more than just Amazon DRMed content, it can handle a number of formats.
As glued to the net as we all are, there's vast quantities of content that is not available online.
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.