Yesterday I bicycled about ten miles to a new client, using the navigation software and GPS receiver in my Android phone. When I told Google Maps that I planned to ride a bicycle, it found an unusual route along back streets. I stuck in my earbuds, asked Google Maps for Navigation, and shoved off. A good-quality synthesized voice gave spoken instructions at each juncture. On one heavily trafficked road I must have missed an instruction to turn, which resulted in my pedaling an additional three miles or so.
Aside from that miscue, the phone worked well as a navigator. It chewed through the battery’s charge, though. Its distance resolution seems about as good as my TomTom GPS receiver. As usual, I found the user interface, especially the touchscreen keyboard, to be my biggest problem: it wasted many minutes as I tried to copy, paste, and enter destination data.