After months of rumours and leaks, the Nokia N900 has finally been officially announced. This marks the start of a brand new generation of Nokia smartphones with higher specification processors and graphics, and is arguably Nokia's first direct rival to the iPhone. The N900 uses the latest version of Nokia's Maemo Linux platform, and features a faster CPU and a lot more RAM than Nokia's current smartphones, as well as a QWERTY keyboard, 5mp camera, WVGA screen (800x480 pixels) and a slick new interface. You can find out more on our sister site All About Symbian, and we have some videos embedded below. Ovi Store should be coming to the N900, and together with it we expect some high quality accelerated 3D graphics too. The N900 should be available in October 2009 at an unlocked price of about 500 euros.