You can't just go out and buy Microsoft Hololens to experience Windows Holographic for Windows 10. Not yet, at least. There's no solid launch window - nothing extremely specific, that is - as of yet, but we do have a few clues jump off from. One is word from JPL Labs at NASA at the California Institute of Technology - they suggest they'll be getting HoloLens units in July of 2015. Does this mean we'll be seeing developer units inside this year? Very possibly. What's not so likely is the idea that we'll get consumer units in 2015.