Continuing with part 2 of the Camera concept series (camera concepts part 1 can be found here).
Sony concept camera from tecnofotografia:
Canon 3D concept from Dean Franciss:
Fleximus camera - the lens (and I guess the sensor) are mounted on a flexible tube and can be a attached to a LCD display or a viewfinder (source: Art Lebedev, see also the design process of this idea):
There is also this:
And some concept cameras from Nikon:
