Acase(TM) AcaseView Screen Protector Film Clear (Invisible) for Amazon Kindle 3 3G + Wi-Fi 3rd Generation, 6" Display - Latest Generation (3-Pack)
Acaseview Screen Protector Film Clear, does work fine.  It comes in a 3 pack, but the first screen I opened, there was no screen protector in it.  Made me think what they gave me didn't work.  Once I opened the second one I realized the first one was just missing.  I did buy two packages and the second package had all three. They do cling to the Kindle, fit fine and easy to read through.