Behold, the LKRL-A002. It's Sony's new 4k cinema projector, which incorporates both a regular and a 3D video projector.
It combines two different 2k sections of the SRX-R220 4k projector using the LKRL-A002 lens, so that both L and R frames of the 3D are displayed at the same time on the screen. That means that although the stereo mode only runs in 2048 x 1080, it's able to run at full refresh rate - not flashing L and R alternately like other 3D projectors.
There's no price, because if you want this thing then you should already have some sort of distributor you can talk to. Pity - it'd go nice in our living room.