A gentleman named Jeff Veen giving a talk at an Ignite show about the idea of "Good artists copy. Great artists steal." He focuses a little on the iPhone with points I think are valid, but that's just an example for the underlying idea and its refinement. I love the way he describes it.
To me, the the way he talks about stealing is more about learning from someone/something and then using what you learn to create something new for the world. What a great take on things.