From The Smashwords Press Release dated August 5th, 2010
Smashwords today announced a two-part ebook distribution partnership with the Diesel eBook Store, a leading independent ebook retailer.
The agreement expands ebook distribution opportunities for thousands of current and future Smashwords authors and publishers.
Under the first part of the agreement, Diesel has become the latest ebook retailer to join the Smashwords distribution network. In addition to Diesel, we now distribute our books to the Apple iBookstore, Barnes & Noble, Kobo and Sony, as well as to mobile app platforms such as Aldiko for Android devices, and Stanza for the iPhone, iPad and iPod Touch.
All Smashwords Premium Catalog titles will go live at Diesel by August 19. If you're a Smashwords author and your books have been accepted into the Premium Catalog, your books will automatically go to Diesel unless you opt out from your Dashboard's Channel Manager (the only reason to opt out is if your book is already distributed to Diesel via a different distributor).