Odds: 10 to 1 What to wear to your next meet-up? Harmonious, a traditional jade necklace design of ancient China which signifies "harmony," is designed for young people and is suited to blogging, chatting, and social networking. The device's mapping function shows the physical locations of the user's friends. If a friend is nearby, the colour of the device changes to represent the personality of that friend. Harmonious is meant to be a fashion accessory with computing power.