I have one question for you :
I just bought a new Ipad 3 and I'm concerned about the fact that I don't find any drawing/sketching app that does not "lag" or have latency problems. I don't know about you, but I feel very disapointed since I feel like I touch the screen and the draw is not instantaneously, it is fast, however its not real time, if this make sense to you.
I'm comparing with the new/latest Android Phones, since I also tried and it works very well.
Do you know if this is related to the drawing software itself ? Or a limitation of the touch screen response ?