"It's meaningless unless your tablet also includes sandpaper, so that the user can sand down their fingers to around one quarter of their present size," he said.Source: CNET
Normal-size human fingers are too big to be able to accurately hit icons on a screen that size, he claimed.
"Apple has done extensive user testing and we really understand this stuff," he said. "There are clear limits on how close you can place things on a touchscreen, which is why we think 10 inch is the minimum screen size to create great tablet apps."
...
"One naturally thinks that a 7-inch screen would offer 70 percent of the benefits of a 10-inch screen...this is far from the truth. Seven-inch screens are 45 percent as large as an iPad," Jobs said. "This size isn't sufficient for making great tablet apps."
Steve Jobs says no to 7-inch tablets
Posted on Tuesday, October 19 2010 @ 17:22 CEST by Thomas De Maesschalck