The 6809 was most well known in the Color Computers
and the Dragons, as well
 as in some early PETs. 
I knew that Commodore was inept at selling computers.  I also knew that they
had a lot of obscure computers which most people never saw or bought.
(There's a huge list that tries to contain everything C= ever made.  The
list may be Jim Brain's creation.)
But could I be dreaming?  Is Commodore even MORE inept than I thought?
Could they really take a lovely processor like the 6809 and not capitalize
on it?  I have a feeling I'm not dreaming.
I haven't seen your site yet, though as I recall, the title is "Secret
Weapons of Commodore".  Great title!  Silly company!  (Nasty CEO Mr. Tramiel!)
-- Derek