According to GSM Helpdesk Netherlands, this is Samsung's next superphone, the Galaxy S III. The image is supposedly an official press shot, and the the timing makes some sense, since it's about a year since we first saw a leak about the Galaxy S II.
GSM's tipster also includes some specs that have been floating around for a while, like a 1.5GHz quad-core processor, a 4.7-inch 720p Super-AMOLED screen at 313ppi, and a 12MP camera. May 22 is mentioned as a launch date, which jibes with some recent rumours (despite what Samsung China's boss says) and the May 22nd date on the phone's home screen. The phone looks really nice for the many fans of humongous phones with humongous specs. [GSM Helpdesk via BGR]