Nokia x The Dark Knight: Smartphone, App, Foursquare and 3D Gotham City

Nokia is going all out to cross-promote the July 20th Batman reboot — Christopher Nolan's highly anticipated The Dark Knight Rises. It launched a Limited Edition Nokia Lumia 900 in the UK on June 1st that's subtly branded with the Batman logo on the back, and is offering a free app for the Windows Phone-powered Nokia smartphones that ties into the movie's release with exclusive content. Next up: the first 3D mapping of the franchise's iconic Gotham City, powered by Nokia Maps.

As Slashgear notes, Nokia released a teaser video, below, but is keeping details close to its chest, adding: "There’s also a location-based game, powered by Foursquare, which allows players to take the role of Batman or Bane and build up territory by checking into places, all with updates pushed to a Live Tile on the Windows Phone homescreen."