Pebble Smart Watch Tells When Phone Calls, Emails Arrive - Walt Mossberg - Personal Technology - AllThingsD

See the full review and the Pebble site for more details

"Pebble is part of what may be a nascent revival for the idea of a wrist computer, something that has failed many times in the past, because older attempts have looked clunky and have been hard to use. A company called Basis has begun shipping a fitness watch with sensors on the back and Apple is reportedly testing a watch that would work with the iPhone.
This wrist computer comes in five colors and is only a bit bigger than a more standard watch. However, it definitely works better on a man’s typically larger wrist. The Pebble may pose a fashion and comfort challenge for women."

Pebble Smart Watch Tells When Phone Calls, Emails Arrive - Walt Mossberg - Personal Technology - AllThingsD