If I can take Nick's comments one step further - where are the approaches to a 50' hover that were demonstrated far too many years ago?
The helicopter world is simply not interested in picking up this stuff because the relative cost of the systems in comparison to airframe cost is high, with many pilots and senior folks not seeing any operational advantage to fitting something like a FLIR or low light TV. A Gulfstream operation operates an expensive piece of equipment and anything that enhances the capability to get the boss where he wants is measured carefully and added if the benefits outweigh the costs.
I doubt that is done much in the helicopter world because we don't get much chance to see the benefits.
I know of one Middle Eastern operator who fitted a mini-low-light TV system to their machine after they nearly ran into a blacked out rig over the water one night... Not expensive, and very nice insurance. Why doesn't every EMS helicopter have it?
Sorry for the rant, but when are we going to wake up???