A short video teasing at the new LG Optimus 3D, which is to be unvieled at the Mobile World Congress this month, has been leaked. The video clip first made its appearance on the U.S. website Pocket-Lint. In the video the hardware design of the phone looks very similar to that of the new LG Optimus 2x. We look forward to hearing more about the smartphone during the MWC next week.