well in a sense yes you can use it as a tablet, but like he said in the clip, its very limited. The thing you will not have is the pressure sensitive pen movement on your tablet giving you depth when you apply weight when you draw. Thats what defines the tablet at the moment and plus it gives a drawing on paper feel. Drawing constantly on a right angle will probably have some kinda of stress applied on your wrist etc. due to the abnormal position you are in for a long period of time.
I really like though is taking one thing and applying it to something else and creating a whole new perspective and/or entirely new product altogether. AND! it was from somebody outside the gaming zone too.
(¸.·´ (¸.·`¤.Tea.. ¤