Prior art
How did this ever get a patent, there is abundant examples of prior art for this idea which preceeds the formation of this company. For starters watch any episode of Star Trek even the 1960's episodes and you'll see examples of e-books where the Kirk signs off stuff on an electronic pad with a stylus. In the Next Generation series this progressed to touch sensitive pads no thicker than an iphone which could be updated wirelessly from the ships mainframe.
This is just another example of how some people think they can get rich from doing nothing! All goes back to the US patent office changing its funding model to one based on how many patents it approved. The whole system needs a broom through it.
Biting the hand that feeds IT
