UpNext: Enhanced 3D Maps

UpNext: Found in 2007, UpNext was started by four high school friends who wanted to make better maps.

Maps redefined. Fully searchable tappable, beautiful maps for the entire United States. Over 50 cities rendered in 3D with 23 enhanced 3D cities with full textures and roadways. Interactive 3D maps for exploring and discovering cities. Our maps are fast, seamless and smooth. UpNext HD Mpas takes mapping to the next level with rich visual detail and personalized options. -- official web site

Amazon buys 3D mapping startup UpNext -- gigaom