The Finnish mobile phone giant has dubbed its new N97 handset the "world's most advanced mobile computer", and promises it will bring users closer to the internet on the move.

The device combines a large 3.5in touch-screen, similar to that found on the Apple iPhone, with a slide-out Qwerty keyboard reminiscent of the Sony Ericsson Xperia X1 and the T-Mobile G1. Unlike the Apple iPhone, the N97 will be able to play the Flash videos used on many websites, including our own Telegraph news pages. It also supports instant-messaging and email on the go, boasts a five-megapixel camera, and a huge 48GB of memory, capable of storing thousands more songs than the Apple iPhone and many other leading devices.

"From the desktop to the laptop and now to your pocket, the Nokia N97 is the most powerful, multi-sensory mobile computer in existence," said Jonas Geust, a vice president at Nokia. "The Nokia N97 mobile computer adjusts to the world around us, helping stay connected to the people and things that matter most."

Nokia has put high-speed web access at the heart of its new device, along with one-button, 'always-on' access to social-networking sites such as Facebook. The phone also uses its built-in GPS technology to provide location-specific information. Nokia, which calls the service 'social location', said that it will enable N97 users to update their social-networking profiles with precise details about their location and find nearby friends.