Just yesterday, Oppo confirmed the existence of the N1 and today the company teased the device might have some form of a touch panel on its back.…
Source: http://www.phonearena.com/news/Oppo-N1-teased-again-will-it-have-a-rear-touch-panel_id46659
Source: http://www.phonearena.com/news/Oppo-N1-teased-again-will-it-have-a-rear-touch-panel_id46659