Boom Boom Two - Picks From The Pamphlet
1. An intelligent viewfinder that lets you make changes to settings with the thing to your eye.
2. Multiple exposure capability.
3. A 150,000 pixel RGB measuring sensor with IR sensitivity means you get a correct exposure even if the light source flickers.
4. Time lapse movie mode with the EOS 5Ds
More info as it trickles in...