Here is a very early, early glimpse of a new project called Streetview Tours.
This is an experiment with streetview, which will give you descriptions of where you are as you walk around.
I'm really excited about this as I think it has huge potential.
This example stands on the shoulders of two giants. I have only been able to achieve this because of work by Mike Williams and his Google Maps Tutorials and amazing work on the new streetview options in the Google Maps API by Map Channels