They look pretty sweet. Nice idea I guess.
But if you wear a helmet, then you might as well not even consider.
And If your touqe/beanie covers your ears, then there may be an issure with hearing, unless you can figure a way to wear your hat over the headphones without it looking odd.
But if your toque/beanie doesn't get in the way, or if you dont wear a hat, then go for it. In that situation, however, I'd just prefer my own headphones and my own goggles.