Programming on the Android mobile platform is, generally-speaking, a Java-based affair. This talk introduces the Scripting Layer for Android(SL4A) project by Damon Kohler and the Python for Android(Py4A) project, both of which work together to provide a Python interpreter environment for the Android platform. I will talk about the history, background and architecture and design of these projects, the current status, and what to expect in the near future. There will be a demo in this talk, which is inspired by the Cellbots project. In this demo, I show how a robot based on the Arduino open source hardware platform can be manipulated using the an Android mobile phone, and the open source projects discussed during the talk.