Turn Your Smartphone Into a 3-D Hologram
Looking for a fun little project that will keep the kids busy and amaze your friends all at the same time? Probably not, but play along with me here. Here's what you'll need:

CD case
Graph paper
Tape or super glue
Utility knife or glass cutter

Oh yeah, and a smartphone...
Holograms May Soon be Part of Your Life
As a confessed gadget-geek, I thought this look at the future of interactive imaging was extremely cool. And, it doesn't look to be that far in the future, either.
From CNET:
There's virtual reality and augmented reality. Microsoft is imagining something similar, but not via a headset...