OK, with Google's help I beat the Amazon Tron de-rezzer.
I'll probably regret doing it (hell, I know I'll regret doing it) but I jiggered them and got the ebook.
If you are crazy, and at this point that's crazy insane, and want one too:
http://ebooks.wegose.com/B000GB7FAQ/...-Approach.html
Their buy it from Amazon.com button links to an Amazon page with a add to cart button that will do the deed.
Well there it is, in all its Adobe-doesn't-understand-ebooks-glory, the nearly unobtainium ebook on my Macbook Pro screen.
That was way too much work. Hopefully the folks at iRex will improve the process.