I've seen a few other posts around the net, and thought I'd try and setup a thread here for a feature request: Bicycle Mode for Navigation.  Google Maps are at a stage where bicycle directions are incredibly useful in communities which have added trails and bike lanes.  However, when going on a longer trip, or a trip to an unfamiliar area, these directions are very hard to consult.  If there were a turn-by-turn navigation mode for biking, these directions would become invaluable.  A beta-mode of these directions in a lab would be a fantastic first step, and would demonstrate the value of adding a fully fleshed-out bicycle mode to navigation.

As a quick example, I recently moved to Des Moines.  I know the city has many bike trails, but it's hard to judge when going a little out of my way would be worth it to catch a trail or bike lane.  Using Google Maps on my Android, I can find out a (theoretically) safer route to get to the nearest large grocery store.  However, because I'm unfamiliar with road names and landmarks, I have to either constantly stop to look at the directions, or be constantly tapping the screen for the next turn, both incredibly unsafe.  With turn-by-turn, the directions would keep up with me, and I could simply mount my phone to the handlebars for a hands-free, safe experience.

Anyone else think this would be a good use of a Google Engineer's time?