Strava

I've started using Strava on my iPhone, partly so I can track a friend who's cycling to Devon and back. I've used it a couple of times so far on rides to work, once with my phone attached to my handlebars. It seems quite a fun app, and gives some interesting stats. I might see whether using my road bike for commuting is faster - although I prefer using my hybrid in busy traffic and on bumpy roads. My user details are http://www.strava.com/athletes/5479170