SimpleTEXT is a collaborative audio/visual public performance that relies on audience participation through input from their mobile phones. The project focuses on connecting people in shared spaces by attempting to merge distributed devices with creative and collaborative experience. SimpleTEXT focuses on dynamic input from participants as essential to the overall output. The result is a public, shared performance where audience members interact by sending SMS, text, or voice to a central server from their input devices. These messages are then dynamically mixed, cut, parsed, and spliced to influence and change the visual and audio output. These communications are also run through a speech synthesizer and a picture synthesizer. The incoming images and text are dynamically mixed according to specified rule sets such as pixel values, length of text, specified keywords, and inherent meanings.