Unless you've been on a desert isle for nearly four decades, innovative designs from industry icon Hartmut Esslinger and his team at Sunnyvale, Calif.-based frog design have likely caught your eye.

Frog Design and Motorola today unveiled a set of Bluetooth-enabled wearable concept devices. The Offspring concept revolves around a "WDA" iDEN smartphone, which is also available in a wristwatch ...