Ride the City: An App for Smart Biking Directions
If your city's crappy bike infrastructure is making it hard to cycle as much as you want, check out Ride the City. It's an iPhone app that will give you a good bike route between any two destinations in New York City, Austin, Chicago, Louisville, San Diego, Seattle, San Francisco, Toronto, or Washington, D.C. The app gives preference to low-traffic streets and ones with dedicated bike lanes and is refined by feedback from actual cyclists. Also, their map data comes from OpenStreetMap, a volunteer community mapping project, so that's nice. If you want to check it out before buying it (it's $1.99) there are also web versions.