Looks like we'll actually be seeing the deployment of holographic storage this year.  I wouldn't get too excited about it right now, though, because the initial stuff's clearly aimed at enterprise backup.

"InPhase indicated that the first incarnation of the InPhase technology would be used for archival purposes, and D'Ambrise indicated that that will still be the case: media will be roughly $120 to $180 apiece, and drives will cost about $15,000."