A low-cost haptic feedback keyboard device for providing haptic feedback to a user for enhancing interactions in a displayed environment provided by a computer. The haptic keyboard device can be a keyboard having multiple keys, or can be a wrist rest or other attachment coupled to a keyboard. The device...http://www.google.com.au/patents/US6693626?utm_source=gb-gplus-sharePatent US6693626 - Haptic feedback using a keyboard device
