Google has recently published a survey showing tablet usage showing more than 165 million tablet devices are expected to ship over the next two years.
It also showed that users spend 78% of their time on their tablet looking for information, and that a tablet users time spent on a desktop significantly decreased.
This all points the way to a ready market for information publishing to tablet computers.
http://googlemobileads.blogspot.com/2011/04/tablets-are-changing-way-consumers.html