Southampton, UK to Edinburgh, UK - Google Maps
maps.google.com
maps.google.com
It would great to have something compute the 'fastest possible travel' from A to B, including as many types of travel as possible. That way you could compare train/ferry/plane/car/etc. for long journeys and optimize accordingly.
I know the train is expensive, but it may be worth it to get to Edinburgh in seven hours rather than 3-4 days...
So I've walked/cycled a fraction of that route at least a few hundred times.
"Walking directions are in beta."
This reminds me of a customer of mine who needed to rent 3 passenger vans to move 20 of his people between the airport, hotel, and office for a project in another city.
It cost $10 per day to equip each van with a GPS, but he didn't know how many days he would need. Or he could just buy a GPS at Office Depot for $90, put in into the lead van, and have the other 2 vans follow. Or just buy 3 GPS's in case the vans didn't travel together. Their PHB asked me which made more sense.
I told him to print google directions between the 3 locations and give them to everyone. Free.
That would have required planning ahead. Instead, they bought the GPS's. I don't work there anymore.