It would be great to add a planning tool for bike rides along with it. An application to use on your computer for easy planning could be useful too.
My suggestion is you would either be able to tap the screen and that way progressively build up your route or just tap in the start and and point (start point could be current location) and let the app calculate the route between. If you have the data one might even be able to choose between shortest or scenic or least traffic or something.
Well, it took awhile, but the latest version of the app (2.0) has a ride planning / directions tool. You can try out routes between 2 or more points on the map, by tapping just like you suggested. :)
It would also be nice to be able to plan a route for a time of day. Morning rush hour will have more traffic and impact estimated time. It would also be nice to adjust pace of cycling - slow, average, and fast, or newbie, commuter, competitor pace, for example.
This isn't working for me I keep getting route not found..