Mobile Processing is an open source programming environment for people who want to design and prototype software for mobile phones. It is based on and shares the same design goals as the open source Processing project. Sketches programmed using Mobile Processing run on Java Powered mobile devices.
A sketch is the term for a program in the Processing environment. For example the Photoslider sketch is a simple game application that uses the Video library to grab an image from the camera phone, cuts he image into pieces, shuffles it, and lets you try and put the puzzle back together.