Leading the Blind
From: R&D Magazines - August 2003 - page 36

A handheld device, called Tormes, uses a global positioning system to guide
blind invididuals. Using a computer with a Braille keyboard and a satellite
navigation system, Tormes yields verbal directions with an accuracy of 15 to
20 meters. That accuracy is narrowed down to 2 meters when the European
Geostationary Navigation Overlay Service is employed. 

Links:
http://www.esa.int/export/esaCP/SEMVQOS1VED_Improving_0.html
http://www.esa.int/export/esaCP/ESAKN58708D_index_0.html
http://news.bbc.co.uk/2/hi/technology/2721245.stm
http://www.spacedaily.com/news/spacemedicine-03c.html
http://www.abilitymagazine.org.uk/cgi-bin/viewitem.pl?category=News&id=1656-2315
http://www.scienceblog.com/community/article639.html
http://in.tech.yahoo.com/030211/139/20zgt.html
http://www.scienceblog.com/community/modules.php?name=News&file=print&sid=639
http://www.accessibility.com.au/news/health/blind_space.htm
http://www.spaceref.ca/news/viewpr.html?pid=11700
http://www.media52.net/archives/000067.html
http://www.betterhumans.com/Errors/index.aspx?aspxerrorpath=/searchEngineLink.article.2003-06-06-1.aspx
http://dbs.cordis.lu/cgi-bin/srchidadb?CALLER=NHP_EN_NEWS&ACTION=D&SESSION=&RCN=EN_RCN_ID:19486
http://www.talksatellite.com/EMEA44.htm
http://www.eyes2eyes.com/eyeonyoudisplay01.cfm?id=0703
http://www.wayfinding.net/iibnodds.htm