Sprint and Research In Motion today announced a the BlackBerry Style 9670, a BlackBerry 6 smartphone with a novel flip phone form factor. According to a press release, the new BlackBerry Style will be available in the United States exclusively from Sprint beginning on Oct. 31 for $99.99 with a two-year contract.

The Style includes an optical trackpad for navigation and boasts two displays, an external screen for viewing notifications and messages, and a high-resolution internal display. The BlackBerry Style smartphone will be available in Steel Grey and Royal Purple.

“The flip form factor appeals to a very distinct but sizable set of consumers in the U.S., and we’re pleased to work with Sprint to bring this unique new BlackBerry smartphone to their customers,” said David J. Smith, vice president of product management, Research In Motion, in a statement.

Additional specs include a 5MP camera with flash, autofocus and support for video recording, GPS, Wi-Fi, upgradeable memory up to 32 GB and the new BlackBerry 6 OS.

The BlackBerry 6 operating system includes an entirely new UI, as well as expanded messaging capabilities with deep integration of social networking and RSS feeds, as well as integrated access to Facebook, Twitter, MySpace and various instant messaging applications that are preinstalled on the BlackBerry Style smartphone.