Tor Books recently announced that the digital eBook edition of Towers of Midnight will be available on January 31. Here's what they http://torforge.wordpress.com/2010/11/12/towers-of-midnight-e-book-coming-in-january-2011/" target="news">wrote on their blog:
As with all our other digital editions of The Wheel of Time, Art Director Irene Gallo will be commissioning new cover art for the e-book. Please follow Tor.com for more details as the project develops.
Towers of Midnight by Robert Jordan and Brandon Sanderson is the thirteenth book in Robert Jordan’s The Wheel of Time Series and a #1 NYT bestselling novel.
The eBook will be available from all the normal vendors including Amazon, BN.com, Borders, etc.