It has been brewing in Sharp’s R&D labs for a few years, now it is ready for mass market. Nintendo is using this 3.8″ WVGA Parallax Barrier screen in their next Nintendo 3DS to be released in time for Christmas. Smart phones will be using it too starting spring of next year. There is a software or hardware switch that can totally disable the 3D effect on demand. Read more about Parallax Barrier at Parallax Barrier.