Update: Sources for The Verge have denied that this model is the Galaxy S III, saying it's "not even close to the final design," and adding "no leaks of the final design have been accurate."
Original story: If you've been following the stories of rumored devices within Samsung's 2012 line-up, you may be familiar with a phone with the product number GT-i9300. When we first caught a glimpse of this device in late March, it was rocking a buttonless setup, with software-based on-screen keys in the style of the Galaxy Nexus. But if the latest set of leaked images from Gizmodo Brazil are to be believed, then the phone may have grown a set of physical buttons over the past month. Photos have leaked today claiming to show the front and back of the device, and aside from the different button setup, they match last month's leaked pics pretty closely. Note the front-facing camera position and the trim around the device's corners.
The images are reportedly from a manufacturing source, which claims the GT-i9300 is a high-end product, with a 12MP rear camera (with dual-LED flash) and a high-quality display. It's also reportedly thinner than the Galaxy S II, but slightly heavier, with a larger screen. Whether it's Samsung's next flagship phone -- under the Galaxy S III name or some other branding -- remains to be seen.
As we discussed yesterday, we still know almost nothing about Samsung's next-gen plans. But all will be revealed at the launch event in London on May 3, and we'll be there to bring you full coverage of whatever's unveiled.