This has been a long time coming.
Preparing to Sell E-Books, Google Takes on Amazon
By MOTOKO RICH
Published: May 31, 2009 New York Times
Google appears to be throwing down the gauntlet in the e-book market.
"In discussions with publishers at the annual BookExpo convention in New York over the weekend, Google signaled its intent to introduce a program by that would enable publishers to sell digital versions of their newest books direct to consumers through Google. The move would pit Google against Amazon.com, which is seeking to control the e-book market with the versions it sells for its Kindle reading device."