Sony Ebooks and Macs

Sony has recently released software that is said to the eReader compatible with Macs. Maybe I can use my Sony eReader for more than reading manuscripts (though it gets heavy use for that) via Calibre but the news on the web isn't good. Adobe Digital Editions doesn't recognize the eReader which means you can't buy any books from any store but Sony's.

And since it is only available for products identified and sold in United States, or Canada I'm not sure how useful it will be to me. But I've downloaded it and I'll see what happens.