Tetris is a tremendously fun 2D game, but 3D Tetris (Block Out, Virtual Boy 3D Tetris, Tetrix) never caught on. It was a lot more difficult to visualize and play.

But it looks like FedEx is up to the challenge. They are developing a two-armed robot from Dexterity AI called DexR to help pack some of the millions of boxes they get each day into delivery trucks.

Give it a read on Wired