After I posted the item I realized that there was no link and it's one of those "email us for access to the data" deals. Which I think is a mistake on their part. Nevertheless this is a great project and I wish there was more of this kind of work out there.

Maybe it's time to start an open source effort to do something similar in some corner of the world? You'd need access to the mapping camera hardware, obviously. Who would be willing to fund it?