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Barry, I'm visually impaired and during my PhD I will need to carry out research in a number of unfamiliar places. I've been looking into GPS systems myself, and although I've read a lot of information online it would be nice to know how easy to use they actually are. I would really appreciate it if you would agree to contact me off list ([log in to unmask]) to fill me in on some of the 'pros' and 'cons' you mentioned in your message. -- Emma Jane Wright School of Sociology and Social Policy University of Nottingham [log in to unmask] www.accessingmaterials.org.uk <http://www.accessingmaterials.org.uk>