I just listened to an episode of Here on Earth that focuses on this project called Urban Earth run by Daniel Raven-Ellison, a geographer at the Langtree School. Similar to Google Street, they are trying to capture still images of cities by starting at one side and walking to the other, taking a picture every 8 steps. The goal is demystify mega cities and show that there is much more to these cities than what is traditionally represented in the media.
If you're interested, here is the story...http://www.wpr.org/hereonearth/archive_081021k.cfm
There's not much on the website yet, but you can check it out here...http://www.urbanearth.co.uk/
Also, this summer On the Media had an interesting segment on border radio if Jim sparked your interest...http://www.onthemedia.org/transcripts/2008/07/04/07