justnick, close it and try agian.
I have had similar corruptions on running a couple of times during the last few months, but never anything reproducable or identifiable.

The scrolling numbers are most likely one of the screens which shows FPS calculations - the camera/maps do that.

BSnoshrk, blue screen hmm, this *may* be same issue as justnick - try rerunning.
However physics view only shows sketches hand drawn by yourself and has nothing at first if you have not drawn anything.
Once you start to draw things they come alive in the physics view for messing about.

To me its a bit more than a toy, its a playground of ideas and a way for me to see which interactions work and don't.
I've wanted a touchscreen device for so long I've got a backlog of things I need to try