From looking at the leaked bezel, I've wondered why exactly it seems to "end" towards the bottom. It's extremely unlikely that Apple would have a seam in their bezel so it leads me to believe they've got something else planned. Going on Stezza's mockup (I love the Apple used as the flash), I just colored in the bottom part in about 30 seconds to show my idea.
I'm thinking an iMac-like look. And I apologize for the absolutely atrocious image, I just wanted the idea out there, I'll let someone else take care of the clean up. I still think this is possible, and I posted a mockup a long time ago that incorporated the unibody look.