Bob Smolenski says: "I've released a new audio game app for blind and visually impaired. Open Field Echo Sounder uses GPS on your iPhone or Android. Walk to the center of an open field and six virtual targets will be arranged around you. Echo locate them using headphones to determine direction. Sighted folks can play it also ;)"
Audio game app for blind people
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. His new book is Maker Dad: Lunch Box Guitars, Antigravity Jars, and 22 Other Incredibly Cool Father-Daughter DIY Projects