Who thinks Leopard will pull an iPhone on Vista? Leopard will be to Vista was iPhone is to Zune.
We can probably take some design hints from the iPhone UI as well, directly instead of metaphorically.
I think your correct that Apple is showing us what Leopard might look like with the GUI of the iPhone. I really hope Apple follows through with that. I'd love to see alot of black elements, yet still be able to use white if I wanted.