It worked on my k3 entering only the serial number ... wait... opening it with kindle4pc to see if readable.
... netbook is slow...
OPENED and is readable. You can report back to those Blokes, ahem, bloggers, that it appears to work.
Sheesh, what can I do with all of the space that not having 12 gazillion copies of the same book in 25 gazillion formats....
Oh, any way to preserve the K3's serial number between runs of the script? I have copied it to a text file but it would be convenient to have it entered and retained.