I have seen numerous attempts at making Bluetooth Headsets out of sunglasses but none I would even consider wearing in public. That hasn’t changed but the TriSpecs come much closer to hitting the fashion/ function sweet spot.
Gadling has reviewed the TriSpecs and found them to be good, quality headsets in addition to high-quality shades. The earbuds wind up into the shade earpieces and overall they look almost like normal sunglasses. The TriSpecs start at $200 so you’d better be sure you like what you look like before you shell out the bucks.