Engage Keyboard from Smartfish has been designed to prevent repetitive stress injury. Based on their studies, the movements of the user while typing can cause pain and stress when it’s not appropriate. Engage keyboard has been designed with ErgoMotion to increase the flexibility and alleviating pain in the user’s typing experience. Instead of changing the key layouts, Engage keyboard features a patented ErgoMotion system that allows user to adjust the position of the keyboard’s two halves and its tilt. The adjustment follows user’s natural hand motions when typing. I hope they have lock mechanism, because I won’t like it when my keyboard moving while I type.