I think this is cool, but I think the true power of this really is in the answers bit. Wouldn't it be cool - after getting engagement from a few thousand people taking pictures and asking questions - to snap a picture of something and have the answer pop up automatically without asking the question?

If they did that - i.e. compare the photo to other similar looking photos - it would reduce a lot of redundant questions and also make it immensely powerful. At that point it isn't a social network anymore; it's a collective intelligence search engine.

But I doubt they'll do that.