Since everyone is so quiet, I fugred I'll share my first cool result from playing around with shapes in the new version. Look at the picture. In the top right corner you'll see a bunch of bots forming roughly a square. These are offsprings from a bot that realized that by turning a bit every turn you avoid getting stuck in corners. All those bots are moving in a counterclockwise circle. Pretty cool!
On a sad note, I keep getting overflow crashes. Often in less than 1 hr time. I had one long run of 7.5 hours, but on average it crashes Every couple of hours.