When I first saw the TitStare thing, I thought it was a Google Glass hack to let you stare at boobs without actually looking at them directly.
While still a really sexist thing, I thought such an app would be an interesting hack, and make quite a statement about the future of these wearable technologies... might be considered an art project if cast in the right light (and also probably renamed).
But a boob-photo sharing app? Sexist and boring.