![](http://photos1.blogger.com/img/98/2298/320/virtual_tour.jpg)
Dug out this month-old Engadget post on GPS-enabled virtual tour guides working on Japanese buses. An opportunity ripe for product placement: "And to your left, you see a coffee shop that makes the best brew in town." More pics here. I'd love to know more about the displays, but can't find anything.