Nokia announced about its new and upgraded operating system called Symbian Anna - previously known as PR2. The new devices Nokia E6 and Nokia X7 are powered by Symbian Anna OS. Symbian Anna improves upon the browser, usability, look & feel, text input and Ovi Maps. This new operating system would be shortly made available to other new handsets from Nokia such as N8, C7, C6-01 and E7 in the coming months.
To read more about the detailed highlights of Symbian anna head over to this link.