This week at the Siggraph computer graphics conference, Microsoft Research, a division of Microsoft focused on "conducting both basic and applied research in computer science and software engineering" demoed Streetside.
The technology is similar to Google's Street View, which uses panoramic images of actual streets to let users see streets from a ground perspective. The interesting thing about Streetside is that it lets users zoom out to a side view of the street and pan around as the various panoramics are stitched together to create one whole image.
Though iPhones and Androids can use Google Street View, it's not known if Microsoft will make Streetside available for real world use, or if it is simply a concept idea. Sounds like a great match for Windows 7 phones and tablets.