bas relief or input/output

Some clever researchers in California are working on a prototype for a brilliant enhancement to the touch-sensitive screens of telephones and tablet personal computers. Without compromising on weight or thickness, materials engineers hope to be able to add an invisible layer over the standard glass screens or consoles that would be able to dimple and rise into pseudo-buttons or or guide point and then flatten out again just as if it were never there. I could brainstorm about the possibilities as this other, artificial skin grows smarter and more tactile—not only might their be new challenges for games, the texture of fabrics, topographical maps and ways to build or compensate for dexterity (I struggle with the tinier canvas on my phone sometimes and I think it would be nice if the screen offered a bit of resistance instead of slipping too freely), this advance could also make tablets and other devices for people with vision limitations just as functional, meaningful and sufficient with adaptive Braille texts that rise and fall as quickly as they are read. What a neat idea.