Very cool. I wonder if there is a way to add (at least for my own personal use) little cut-throughs and such? For instance, I hop a curb on my commute to get from a freeway access road that loops around under the freeway at a train track, to cut across and get to a road that actually crosses the track. When I plug into Google Bicycling, it doesn't presume (and I don't think there's any way to force) jumping curbs or cutting through non-roads and non-MUPs.

EDIT: There is a way to report "problems". I reported a couple of the spots where Google Bicycling routing differs from the route I actually take. We'll see if they respond.