I've made a small demo app with pygtk and cairo at www.erikhk.net/tmp/cairotest.py , press anywhere on the screen and one of the corners of the triangle should move to the point where you pressed. This is really slow though, is it because of gtk, python, cairo or crappy coding?

I tried a pygame app aswell, which is also really slow, much much slower than on the computer; www.erikhk.net/tmp/fysik.py , try dragging a line on the screen and watch the ball get thrown.

Do you get the same results?