Steve Jobs is one of the best thing going for Apple. The 5000+ developers at the WWDC all acknowledge that. They don't need someone who knows nothing about Apple giving them ignorant opinions.
As for copying, Leopard is building on Tiger which built on Panther before it. For the last 6 years, Mac OS X has been leading up to Leopard. So I don't know what mean by Apple is copying. Quartz and Aqua, which are the underpinnings for the visuals in Mac OS X, have been there since the beginning.