The above picture is said to be have been taken from the yet unannounced and the upcoming Samsung flagship Galaxy S III. The EXIF data of the photo tells us the model number of the device used to take it which is GT-I9950 which seems like the model number of the next Samsung Flagship as the original Galaxy S had the model number in the GT-I90XX range while Galaxy S II HAD THE I91XX set of model numbers; the Galaxy Nexus goes by the GT-I9250 internationally, further authenticity is added for the fact that the shooter is the same person who was testing a Galaxy S II way back in January even months before its launch.
Certainly exciting times ahead, with the Galaxy S III rumors all around !