This thread is a good idea. I don't own a Kindle myself, but I've been making requests to Amazon anyway in the hope that if they put out an ebook version, it will likely come to Sony and/or other stores too.
Here are some of my own requests:
A Canticle for Leibowitz - Walter M. Miller, Jr
Blood Meridian - Cormac McCarthy
The Gormenghast Novels - Mervyn Peake
Solaris - Stanislaw Lem
Riddley Walker - Russell Hoban
Little, Big - John Crowley
The Brothers Karamazov - Pevear and Volokhonsky translation
Lolita - Vladimir Nabokov
Colleen McCullough's Masters of Rome series:
The First Man in Rome
The Grass Crown
Fortune's Favorites
Ceasar's Women
Ceasar
The October Horse
Antony and Cleopatra
I should probably stop here!