A team of scientists has modified a "dark horse" theory of gravity, enabling it to account for at least some gauge transformations. The only reason I could follow the article at all was I just recently read Warped Passages (highly recommended!). Even then it made my head crack, instead of explode like this sort of thing normally does. I guess it would suffice to say this is important, and, if the predictions this new theory is presumably making pan out, could represent the revolution required to integrate gravity with quantum mechanics.