With sales of DLP-based rear-projection TVs fading as flat-panel TVs grow larger and larger, Texas Instruments is apparently working on technology that will allow different people watching the same display from different angles to see different images provided they’re wearing special glasses. I saw similar technology from Sharp at CES in 2007 or so and it worked pretty well even without additional eyewear.
I doubt the technology will end the long-running war for the remote in he living room but it could have commercial applications and makes sense for in-dash displays where the passenger might want to watch a movie while he drier might want to see navigation information.