The pCubee isn't just poorly named, it's a "perspective-corrected handheld cubic display"
"The pCubee is a cube that fits right in your hand and features five flat-panel LCD screens. The screens all work together, displaying the same image but from different angles; when you turn the cube, the displays appear to show you items "inside" the cube that you're interacting with. The perspective and real-time physics appear to be spot-on in the demonstration video."
Next Gen
And here is the rest of it.