Currently there are several route and trail oriented websites such as MapMyRide.com, Bicycling Magazine and Everytrail.com. Most of the applications are geared towards fitness tracking but the data could be uploaded online and used to collect data for smartphone applications that can record gps data from your bike, walk or running trip. As usual most of the apps are for the IPhone with some for Android and Blackberry, I do not know of any app for Windows based phones, which would truly open the field to many more cell phone users.
One use of bike trip data include verification of rider participation in bike commuter challenges these programs for the most part currently rely on participants manually reporting their commute trips. But the most useful product would be to create a database that documents when and where bicyclists travel. This results could be then be used to prioritize bicycle infrastructure improvements for planning agencies and municipalities. And of course Google Maps could use crowdsourced data to increase user confidence in their bike routing application (streets used most frequently could raise the "score" of that street)
The problem is that there is no convenient central collection point online right now to upload and process the data, for example seeing or downloading more than one route at a time at MapMyRide is a clunky process.
AFAIK - "There's no APP for that".
Click here for a review of gps smartphone route applications.