Android Key Lime Pie

It started with the earpieces--those ever-so-slightly pretentious examples of wearable technology lampooned on sitcoms like The Office. Now there could be heart monitors, medical devices, smartphones, tablets and, just maybe, Google Glass. Once Bluetooth Smart is better supported in Android, the scope for what's possible may only be limited by developers' imaginations.

Leaked documents indicate Google will introduce the next major update of its Android mobile operating system this spring.