Superman Returns?

Superman Returns teaser trailer is finally available. But is this really a teaser for the new movie? It uses music from the original movie as well as Marlon Brando's voice for Jor-El. The clips are clearly the new movie, but its a kinda confusing deal.
For the first time I'm wondering if Singer's boyish love of the Donner original might be more detrimental than helpful. Bah, nothing can keep me away from this movie...