Stefan Mileschin

Finger-lag is one specification buyers of touchscreen devices such as tablets and smartphones don't pay too much attention to. Finger-lag is a phenomenon when it takes a short but noticeable amount of time for a touchscreen-enabled device to respond to a touch interaction in progress (such as drawing something in a paint program, dragging an object around, etc.). Microsoft sought to address the issue by developing a new touchscreen technology that reduces latency to 1 ms, delivering much more responsive touchscreen interactions. Paul Dietz at Microsoft's Applied Science division has managed to lower touchscreen latency to 1 ms, in comparison, touchscreens in the market typically have 100 ms. The technology can also be applied to high-precision stylus-based devices such as graphics tablets, where touch-latency can affect the quality of graphics work.

http://www.techpowerup.com/162232/Mi...s-Latency.html