Tactile Technology Could Guide Visually Impaired From: SRI Digest - 01/2011 Access to documents, graphs, maps, and the Web could become easier for the visually impaired. Zone24x7 and SRI are collaborating to determine the feasibility of incorporating SRI's electroactive polymer artificial muscle (EPAM) technology into a low-cost, mobile device that would produce high-definition tactile images. EPAM, a smart material technology developed by SRI, has unique vibrotactile properties. Read the entire article at: http://sri.com/news/releases/111810.html Links: Zone24x7 http://www.zone24x7.com/ EPAM technology http://www.sri.com/robotics/epam.html#EPAM Optacon http://en.wikipedia.org/wiki/Optacon