Disaster through multitouch

The thing is really incredibly cheap, software, drawing tablet, Bluetooth, ... and for the price ...

My minimum claims would have been that I can sit down my son and he can paint a black line on the screen.
It would be nice even if I could paint there. (Quite ingeniously translated did the Autodesk with SBM for tablet PCs).
Perfect if there was a functioning painting course, as with ArtAcademy on the Nintendo DS.

So I take it this short, the main problem is the multitouch, once you come with NEM finger or hand on `pad as it gets. Therefore, my children can do anything with it and I do poorly. This is a small point makes the otherwise great hardware and the total package almost worthless.
The software, not great, but not very bad.
And there is a course that is good in the idea, but it is not that you can use the Tablet right does not help all that.

My conjecture: Someone the great multitouch feature has devised the no one could speak again, could, did. That has to be noticed in the development but already!
It is a pity such a good idea and interesting software was sacrificed by the unimportant multitouch feature the character ability.