Not sure how many of you have read the latest Scientific American, but this will deal somewhat with that. The cover article is an overview of a quantam theory of gravity. It states that "a universe that exists in two dimensions and is without gravity may be completely equivalent to a three-dimensional universe with gravity. The three-dimensional universe would emerge from the physics of the two-dimensional universe somewhat like a holographic image arising from a hologram."
After reading the entire thing, I'm now pretty convinced that a quantam theory of gravity would provide a way to reconcile gravity with electromagnetism and the strong and weak nuclear forces, which would be of immeasurable benefit when it comes to considering black holes and other heretofore brain-wracking problems of physics. According to the article, while the mathematics involved haven't been "rigorously proved", they have proved useful in analyzing experimental high-energy physics results.
Perhaps this will finally be a way to realize Einstein's dream of a "theory of everything" without having to resort to such theories as string theory, which as of yet has still to provide a testable prediction.
EDIT: Anyone with a subscription to the digital version of Scientific American can read the article here http://www.sciam.com/article.cfm?cha...5C83414B7F0119