Man, we're starting to think Google should just host an I/O event every month. As the search giant continues to roll out new innovations, today's introduction involves none other than Android. Starting today, folks with Android phones using version 1.6 or greater have a pair of must-downloads to tackle: Walking Navigation (Beta) and Street View smart navigation. The former is bundled into Google Maps for Mobile 4.5, offering pedestrians a more robust routing option when using their own two feet to maneuver from place to place.