There's been a lot of talk lately about a rising accessory category called "smart watches." They're essentially wristwatches with the ability to connect and share data with smartphones — think the Pebble, or the Strata.
Today, Casio has officially announced that it's throwing its hat into the smart watch ring with a new line of iPhone-friendly G-Shock wristwatches. They actually look like regular watches, until you see what they can do...