I'm learning too much too slowly about electronic publishing. A couple of things I've learned:
1. Ebook publishing, especially for the Kindle, favors the Windows world.
2. Smashwords, the cheapest way to get books into Apple and the Sony bookstore, did not expect to sell books with more than one author.
1. I'll be putting Windows on my Mac or I'll buy a cheap netbook with Windows.
2. Either Smashwords will agree to my proposed work-around, or, well, we'll find another solution.