The only tidbit gathered by PhoneScoop that wasn't already revealed at MWC last month, aside from the product name and press photo, is that the device's 4G access will come from Clearwire's Clear WiMAX network, which isn't a whole lot for Samsung Mobile to confirm or deny.
That said, it's probably safe to assume that the Mondi's previous specs (4.3-inch touch screen, Opera browser, Windows Mobile operating system, automatic screen rotation, TV out, microSD card slot, and dual cameras) still hold true.
[PhoneScoop via WMExperts]