The main problem I have been having is: hiccups on the tablet i.e. you draw a line and a second or two later it appears. In real life it is real time, so when the tablet can emulate that, that is when the ball will really roll. I think this maybe a hardware issue i.e. limitation of the tablet based on cpu and ram.

I have just given airx a go. It seems to show some promise in that it gives the tablet a shot at gimp, albeit, not natively. There is a slight lag, like what I mentioned above. I don't know if that is on the tablet or my computer side of things. But, it's alot of fun to play with!

I am posting a little 2 minute sketch I did.