The source claimed that they had “witnessed Unreal Engine 3 demos running at a solid 60fps” on the device
60 fps for an Unreal 3 game? PFWOAR!!!
Consoles have entered the year 2008! News at 11!
Considering they've been doing this forever, my guess is that they mean UE4. But who knows, it isn't even like that means anything. I can make a game with UDK that no current Intel/Nvidia setup can run at more than 10 fps. Or I can make one they can run at hundreds. It tells you nothing of the hardware.