No it's not a joke. You are actually looking at the beginnings of the future of DSLR's.
Why do I say that? Simple. The only reason for the mirror is to bounce the image into the viewfinder so that the photographer can see exactly what they are taking a photo of. (Focus, DOF, etc...)
Now enter the world of mirrorless cameras. The back LCD acts as the viewfinder and for now they are large and cumbersome. Given advances in technology and the speed at which it is advancing, soon we will see LCD screens small enough AND high enough of resolution and brightness to act in place of our current DSLR viewfinders. Or it may be some sort of digital-optical viewfinder... who knows? But this is the start of it.
There will be added benefits too, higher FPS (no mirror to "slow" the camera down), camera bodies that do not have a shutter mechanism to wear out and reduced costs.
The DSLR won't be around forever, it will eventually be replaced by some other new technology and I believe that the mirrorless camera is the direction this is all heading.