NavNGo was already displaying its 3D capabilities in March at the CeBIT trade show in Hannover (see our article here).
Mio did not detail which cities will be offered in 3D. However, in May Tele Atlas said: “The detailed, navigable Tele Atlas 3D city maps available in July will cover nearly 2,000 km², or approximately 40 km² per city. In addition, they will feature complete, textured city centers modelled in 3D and Tele Atlas’ unique 3D landmarks of notable structures”.
According to a Tele Atlas study, 81% of current and potential navigation system's users have a preference for 3D display over 2D display offerings. The study also indicated a strong willingness to pay for additional 3D city map content.