Engadget reports on IO2 Displays new M3 Heliodisplay system.  I have written before on these systems and played with them a bit (here is a video of my furry arm in one).  They are similar in many ways to fogscreen (video here) in that they all display a pseudo floating image on a film of water vapor fog.  Newer versions add gesture controlled interactvity.  I cannot stress enought how much  I believe gesture control will transform surgery.

The new version claims an improved tri-flow system for increased image stability and uniformity,” enhanced brightness and clarity, a 1,024 x 768 resolution, 16:9 or 4:3 aspect ratios, 2000:1 contrast ratio.

Right now these are party gizmos and great for promotional booths.  I predict future implementations of endoscopic surgery will employ floating 3-D images with gesture control. A theme I have been preaching loudly as I write on futuresurgery.