By the end of next week, the Nokia Lumia 900 Windows Phone will be fully available through O2 in Germany. The Lumia 900 will sell at €541 unlocked or €22.50 for a 24 month purchase plan. The Lumia 900 will be available in black, white and cyan. O2 will be running a specific promotion for the white Lumia 900 under the “White Sensation” title. The Lumia 710 and Lumia 800 will also be included in the “White Sensation” promotion.