Japan Live Cam: Tokyo Trailer

This camera is on Ustream and is not always live, but you will have best luck if you go on during Japanese daylight hours. This is a dashboard mounted live camera of a delivery driver in Shinagawa. It's mesmerising.

Bonus points for the live map in the corner.

http://www.ustream.tv/channel/tokyo920

If you sign up for Ustream, and add yourself to this crowd, you can get email notifications when this cam is live.