Hey Jon,

I think the simulator is not correctly using the draw window, it does not seem to wrap back up to the top left of the draw window.

Here's an easy way to reproduce the oddness:
-Take the Analog Watchface example code.
-In pulse_app.c, increase the loop bounds to say, 10000 on lines 123,129,135
-The drawing should stay within the draw window but it doesn't, attached a screenshot.

Thanks for the bug report.
We'll get that fixed tomorrow and post a new simulator package.

pSim 1.0.1 has been posted.

http://www.getinpulse.com/simulator/

Note: there is now a version.txt in /pulse_simulator/doc/ that includes a change log.