Sure, but is the DSLR market growing to the same extent that the point and shoot market is shrinking? The Canon's and Nikon's of the world can survive by focusing on a smaller market of prosumers, while Kodak is in massive trouble.
I don't believe that dedicated handhelds are literally doomed, as in, they won't exist. The question is, will there be enough room in the end for multiple dedicated platforms, and more importantly, enough software support to keep them all healthy and viable(something camera companies don't need to worry about).