If it were likely that any device maker would want to buy and incorporate calibre... that would imply a level of intelligence such that calibre would never have been necessary.
(This was Kovid's response to my tongue-in-cheek remark that they should take a leaf out of his book regarding recent footnotes support (speaking of which,
!))
And I agree Kovid would never do it. Sometimes you can tell, a developer has too much pride in his work to sell out to the monoliths.