I think what's interesting is that many types of creativity may really just be re-synthesizing "stuff we already know."
So a lot of the negative comments along the lines of, "it can't be creative because it never thinks of anything beyond its training data" don't click with me. I think synthesizing two existing concepts into some third thing is actually a form of creativity.
These nets may not learn the same way we do exactly, and they may not possess the same creative abilities as us — but there's definitely something interesting going on. I for one am taking a Beginner's Mind view of it all. It's pretty fascinating.