The UbER-Badge is a small, wearable-computing platform for experimentation with distributed systems, and the analysis and enhancement of group social interaction. The UbER-Badge is equipped with multiple communication channels, including an RF channel for broadcast communication, and an IR channel for more intimate dialogues. It is also equipped with a large LED matrix display, vibratory feedback, audio input and output, and data memory. It is powered by three in-system reprogrammable microprocessors. It is designed to be easily augmented by other technologies to enable a wide span of research throughout the Media Lab and the sponsor community. It was used in October 2004 at the TTT sponsor event, providing a suite of different applications.