Hmm, I found a village on the globe and opened routes.  I asked for directions to the nearest town by bike.  I know the route exists because it was me personally who added it.

Marble gives me directions to a town with the same name in the USA....which is odd, because cyclestreets only covers UK routes.

All the other routes I've added are there and work - except one, which zooms you back out into space.

So, it's still a bit buggy - but it's not half bad for a first iteration.

I suppose I have to download the debugging symbols and figure out what's going wrong now though.