Yesterday I tweeted a question about finding a GPS app for iPhone that lets you draw a route to follow because I want to try and ride the route the riders will follow for the 2011 Cycling World Cup in Copenhagen.
Thanks to Søren Johannesen I came across MotionX-GPS, a GPS app that accepts route files in the GPX format. The World Cup website has a link to a Google Map of the route where I downloaded a KML file. I used GPSBabelFE to convert the KML to GPX et voilà! (To save you the trouble I uploaded the converted GPX file here.)

Pretty sweet.
Unfortunately MotionX-GPS does not support turn by turn navigation. Anybody know an app that does that and supports KML or GPX files?