Bluetooth headsets used to be cool. Now they just seem obnoxious when worn all the time. I wonder if Google Glass will ever reach the obnoxious level. A curv

Bluetooth headsets used to be cool. Now they just seem obnoxious when worn all the time. I wonder if Google Glass will ever reach the obnoxious level. A curved-screen watch device would be more subtle, and is probably the better all-around device.