2 quick vids I made & uploaded to YouTube, first one is an overview, second one shows how the Kindle handles PDFs. If there's something specific you want to see displayed on the Kindle or any features you want recording please let me know & I'll try to do that for you.
Overview:
http://www.youtube.com/watch?v=umyo3D3kVQI
PDFs:
http://www.youtube.com/watch?v=Crgpr1LO7ns