The Most Popular Computing Device Has Yet to Be Invented: The 15-Inch Tablet
 

I've wanted to write this for some time, but hadn't because there was no solid data to back-up my assertions. I do now. This is about why I believe the future of tablets (and by extension, computing) is 15-inches in display size, perhaps even 17-inches.


http://www.techspot.com/article/866-the-15-inch-tablet/

10-inch devices are already on a the big side, that's why the 7" devices were introduced later on, with much success.

going bigger makes the device cumbersome