Nokia unveils the N97 3G Quad-Band HSDPA phone, that is considered to be the next flagship device, coming from the Finn giant. The new N97 packs, a 3.5-inch, 640 x 360 touchscreen (16:9 ratio), a sliding QWERTY keyboard, a microSD slot and 32GB of memory inside. This top-notch handheld, which carries the title “world’s most advanced mobile computer”, has WiFi and Bluetooth connectivities, along with 3.5-mm headjack, A-GPS, and a strong battery that can provide up to 1.5 days of continuous playback or 4.5-hours of high-quality video. Naturally, there’s a 5MP built-in camera with Carl Zeiss glass and Symbian S60 5th Edition OS, to handle all those advanced features. It is scheduled to go live somewhere in the first half of 2009, for 550 ($693), excluding taxes. Meanwhile, checkout the videos after the break.