About 20 years ago, the static split-and-tilt ergonomic keyboard became the wrist-friendly standard. Today, Smartfish Technologies, a company founded by a former chiropractor, has a better approach: the Engage, a keyboard that periodically shifts its position. The goal is to constantly change your typing angle, thereby reducing the chance of repetitive-stress injuries. A motor inside the keyboard tweaks the separation (up to 1.4 inches) and tilt (up to 6 degrees) of each side in small increments every 2,500 keystrokes. You can also alter the frequency of changes.