The time is near when iPad2 start we have seen an increase in actual cases of the supposedly even notified unit. A more reliable design, however, has appeared at CES 2011 in Las Vegas.

Not only that, in the case of a mock up aluminium iPad2 clearly aims to show how the device fits into the case, but the closet yet to what we think entity will look and feel like. Visitors would be surprised to find that the iPad would not fit the case either, as a further clue that the new entity will be narrower and lighter.
From this objective design, we can get an idea of the device with which it has been designed for, it will have the home button close to the bottom, a large speaker, camera or cameras and it will be smaller with the either the edges, making this sound like the new iPad2!
Source [Engadget]