Simply put, glass is molecularly geometric - building actuated buttons into the glass itself isn't very probable. But a film of actuated buttons could be added

Simply put, glass is molecularly geometric - building actuated buttons into the glass itself isn't very probable. But a film of actuated buttons could be added much like with capacitive touch sensors today. Microfluidics is near the 100nm range today. Throw in a bit of ferrofluid and something like this is at least plausible. The challenge is in making all this transparent. The microfluidic channels would need to not create a 'screen door effect' and the fluid transparent. The Royal Society of Chemistry's 'Lab on Chip' Youtube Channel [1] is a good place to daydream about the future of such things. [1] http://www.youtube.com/user/labonachipVideos/videos http://www.youtube.com/user/labonachipVideos/videos