Yep. Dougie uses a sony Lavalier mini-mic mounted on a wire hanger thingy which holds the mic out in front of the soundhole. He gets a great sound out of it too. And he switches it easily between guitars.

I think it would take some getting used to. It looks like it would be in the way when you're strumming. But I've never seen that he hits it. You can bet I would.