Six Flags Entertainment Corp. says it has inked a new partnership with Nokia to support the launch of its new Lumia 900, and is unveiling a custom application for Six Flags guests for all of its U.S. parks. The deal provides Nokia with marketing opportunities across the parks, as well as joint sweepstakes and retail promotions. The app includes interactive features specific to each destination, including a custom day planner and video from Six Flags TV.