I absolutely agree with the "let's not get carried away" crowd.
For one, the Lakers paid virtually no attention to him last game. His full court dunk was because the Lakers were afraid to to leave Garnett to go to him. I don't think the Lakers will forget about Leon this time.
Secondly, if you look at him standing next to Pierce, Leon's only like 6-6, 6-7 at best. While he plays bigger, he's not the defensive presence that Perkins and Brown are at nearly 7-foot. Remember, defense is what got us here and why we're up 2-0.
Finally, as an addendum, even if if Leon continues to impress, let's not get carried away. Time and again role players have stepped up in the playoffs for title winners, landed big contracts, then when the team asks them to be a star, failed to produce once people start paying attention to them at the defensive end. Look at guys like Austin Croshere, Shandon Anderson, and Jason Caffey. So while I wish the best for Leon and hope to continue to see him in Green, let's not annoint him KG's successor at the 4 yet.