yeah now that you mentioned it, Lair does resemble the scope and detail more or less. although Nate's polycount and lighting seems abit too good for realtime though.
Looking at Lair and R&C, I am curious whether Insomniac plans to transplant the flight and space battle levels to R2. I hope not.
I'd like Nathan to do more (e.g., climb) but dogfighting is something that should be left to another game. Unlike R&C, R2 should provide a deep experience for everything Nathan does -- as opposed to a wide array of shallow (but entertaining) capabilities.