InPhase has apparently finally shipped its long-promised holographic storage technology. InPhase’s holographic drives can store 300gb on a single DVD-sized disc. Of course that disc will cost you $180 just for the media (300gb worth of DVD+-R runs less than about $25 these days). Unfortunately, this is likely to remain a niche product for the forseeable future so the price is not likely to drop sharply anytime soon.