Multifunctional customizable personal electronic devices with interchangeable electronic charms for monitoring activity on Internet-based social networking services, receiving coded electronic messages sent over the Internet and cellular telephone networks, monitoring and broadcasting physical proximity information to users of like devices, playing electronic games, displaying illuminated electronic charms, and storing and communicating user-generated geographic data; Mobile device software applications and computer software applications for recording, organizing, storing, transmitting, receiving, and reviewing text, data and images, and for playing electronic games
Electrical and Scientific Apparatus