An update to Robonom, a robot programming game for Windows Phones has been released. This update brings compatibility with Mango Fast App Switching and bumps the fps to 60 (so the robot can move faster.)
In Robonom, you control a robot by giving it instructions, but you have a limit on the number of instructions you can give it. The objective is to pick up all the stars, so to stay within the limit, one has to use programming tricks like functions, recursions and pickups. The later levels are quite challenging. The game has excellent reviews on the marketplace.
Robonom has a free trial which comprises the first 3 chapters (24 levels). The full version has 7 chapters (an additional 32 levels) and allows you to unlock the next chapter by solving only 4 levels per chapter, instead of 6.