Modu - Five User Interface Advances to Watch in 2008

Modu's modular, multi-function handset was one of the most talked-about innovations to surface at Mobile World Congress. The Modu system comprises a tiny, 1.3-ounce core module that integrates with a series of "jackets," effectively enabling users to transform their phones into different kinds of mobile devices depending on individual or contextual needs. The core module's domino-like UI is extremely simple and user-friendly, with a micro-USB interface and a proprietary port on the bottom.

Modu demonstration video: