Not much from the Canon booth (it's more for the purpose of promoting their existing product).
However, it's great for bag-hunting, since they have all the major brands at one place. Actually have a chance to test out Crumpler's Karachi Outpost and Tamrac's Evolution 9. The one I'm the most impressed with is the minibee from Kata - ideal size, great built, roomy compartment, and LIGHT - the only drawback is the price tag
Nikon on the other hand is promoting their Nikon 1 V1 and J1 en-masse. Don't know what's so attractive about the pink J1, but that's on the cover of their flier. On a side note, the auto focus and refresh rate of the EVF is actually quite impressive.
Then there's the Manfrotto booth with their new bags and jacket/vest collection. I wander why they decided to join this market? Though not impressed by their bags, the new vest and jackets look nice.