The goal of a watchphone is right in its name: make a phone small enough to wear. If success is rated on a scale of zero to Dick Tracy, aim to hit as close to the famed Two-Way Wrist Radio as humanly possible. And when we first saw the LG GD910 in January, we thought the mark had finally been hit (bring on the yellow trench coat!). And LG, of course, was not the only game in town; throughout the year, competitors unveiled their own wrist-bound beauties, and it seemed like the gadget-lover's fantasy was about to go mainstream. We put two current watchphones to the test to find out.