Thumbnail WalkyTalky is an accessible navigation aid. -Periodically
<<Intersection Explorer provides a virtual map of your surroundings that can be explored eyes-free. Use touch to move along the current road. Available directions that you can take at any given point will be spoken to you.>>

http://www.googlelabs.com/show_details?app_key=agtnbGFiczIwLXd3d3IVCxIMTGFic0FwcE1vZGVsGIHDtwIM

<<WalkyTalky is an accessible navigation aid. -Periodically updates the status bar with your current location to the nearest street address -Ability to input a destination and directly launch Maps Navigation in Walking directions mode Please remember to enable GPS when running this app!>>

http://www.googlelabs.com/show_details?app_key=agtnbGFiczIwLXd3d3IVCxIMTGFic0FwcE1vZGVsGLGztwIM