I'd love to be ale to get RAWs out of this great camera. And exposure bracketing would be good, I've been doing quite a lot of HDRs with my G3.
But there already is exposure bracketing on the S80. As a matter of fact, exposure bracketing for shooting HDR was why I bought the S80 in the first place.
You access it in Program mode (P) by pressing Function Set, selecting the third icon down in the side menu and pressing Function Set again, scrolling to the second icon at the bottom, pressing Menu, using the flywheel to set the exposure range, and pressing Function Set again. The quickest way to access it is to set it up as your Custom setting.