Check it out here.
Also check out some commentary about this program here.
I. Love. It.
UPDATE -- From a news release today from Amazon:
Today, less than four years after introducing Kindle books, Amazon.com customers are now purchasing more Kindle books than all print books - hardcover and paperback - combined. . . .For authors like me, who will have his first novel self-published on Kindle (and elsewhere) in June, this is great news. It confirms that the market for ebooks hasn't even begun to be tapped, let alone "saturated." As prices for self-published ebooks continue to undercut the inflated prices of the Big 6 publishers, more and more customers are encouraged to buy more and more books, across more and more platforms.
Recent milestones for Kindle include:
* Since April 1, for every 100 print books Amazon.com has sold, it has sold 105 Kindle books. This includes sales of hardcover and paperback books by Amazon where there is no Kindle edition. Free Kindle books are excluded and if included would make the number even higher.
* So far in 2011, the tremendous growth of Kindle book sales, combined with the continued growth in Amazon's print book sales, have resulted in the fastest year-over-year growth rate for Amazon's U.S. books business, in both units and dollars, in over 10 years. This includes books in all formats, print and digital. Free books are excluded in the calculation of growth rates.
* In the five weeks since its introduction, Kindle with Special Offers for only $114 is already the bestselling member of the Kindle family in the U.S.
* Amazon sold more than 3x as many Kindle books so far in 2011 as it did during the same period in 2010.
* Less than one year after introducing the UK Kindle Store, Amazon.co.uk is now selling more Kindle books than hardcover books, even as hardcover sales continue to grow. Since April 1, Amazon.co.uk customers are purchasing Kindle books over hardcover books at a rate of more than 2 to 1.