Noted leaker and poster of pictures @evleaks just released an image that appears to show an unannounced Samsung Galaxy phone with a curved AMOLED screen. Past devices with curved glass, like the Galaxy Nexus and Nexus S, have had curves running from top to bottom. Not this one, though. Samsung's next device may sport a left to right curve, which makes it look kind of like a soggy taco shell.
The last round of vague hints from Samsung had this device pegged for an October release in South Korea, but nothing beyond that.