This problem doesn't seem to be version specific - I've tried CS4 and CS6, and the problem acts the same.
I'm using a Samsung ATIV 700t, which has input through touch screen and Wacom digitizer pen. Using any tool (ie: brush) on the stage with the pen results with the start position recorded and only detecting another position when the pen leaves the program area. Brush and pencil toos will show a dot at the start point and create a straight line to the exit location. When I use touchpad input things work as expected - I can draw without pressure sensitivity, provided I wait as to not trigger panning functionality.