Normally, we don't get very excited about leaked images of mid-range devices. This one is no exception.
Still, it is a first look at a new device, so that counts for something.
What you're looking at there is a Samsung device codenamed Jasper. It's a mid-ranger with specs to match:
1.5GHz Dual-core Snapdragon MSM8960
800x400 display (ewww)
It's hard to say how large the display is judging by the image, but we'd guess it's probably around four inches. It also looks very similar the last year's Droid Charge, so we could see this emerge as the Droid Charge 2, Charge Mini, or some other Charge-y thing.