The iPad (tablets) is at it again. After all these years Stanford has uped the anti on what the bar is for acceptable braille reading and writing devices. The tablet system shown here calibrates through a swipe and audio queues, and sets the type pad to where ever the users fingers lie. (This solves the problem with the lack of tactile response the flat screen of an iPad provides. In essence, as descried in the video, the input points find the users fingers, not the other way around.)
Sean Shadmand 