Hack let you convert encrypted Mobipocket files that were intended for another reader so that that work on Kindle.
As glued to the net as we all are, there's vast quantities of content that is not available online.
The Kindle supports Mobipocket files directly. You don't need to write a script to do that.
There are converters available from Amazon and/or Mobi for pdf and doc files.
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.