It’s not pie in the sky, it’s already pretty damn real as a prototype.
HUDs for phones or everyday communication devices is flat out ridiculous. However, I can very much imagine HUDs become standard for many industries were some sort of direct and very intensive interaction with a lot of data needs to happen. This might include:
- Architecture – augmented reality, seeing structures in 3D were they still don’t exist
- Engineering – manipulating and “sculpturing” and even running simulated augmented models in real-time. This might give a huge push to extreme manufacturing by lowering the cost of development tremendously
- Medicine – see-through patients, overlay of medical data and health records
- Military – overlay of sensory data, could be distracting though
- Studying/learning environments – imagine all students and the teacher having one of these and being able to interact with spatially 3D augmented and controlled objects in the classroom. This might be perfect and a lot cheaper than full-blown holograms