The Black Bird

I started reading the Maltese Falcon by Dashiell Hammett last night, no I didn't buy the over priced book I found at Barnes and Noble.
I went through the collection of Ebooks I have been downloading from time to time on various newsgroups and found I had it in .pdb format. pdb?
I did a little research and found out that pdb was for the Palm reader. I downloaded a 15 day free trial version for windows and started reading.

It is kind of weird though because even though Hammett describes his characters very well and I read the descriptions I still saw the characters from the movie, especially Peter Lorre's Joel Cairo.