you can't copy innovation.
I read an article, not too long ago, about the creation of a Chevrolet plug-in hybrid, and how the major goal was to actually create innovation. I can't remember where I read it, but the major thing I took away (other than the project probably being doomed) was Toyota announcing a similar product later on, with a more restricted schedule and numbers, and a GM exec feeling accomplishment and delight, even awe, in the fact that this fearsome, dominant competitor was being a 'follower'