ScopeAR (YC S15) Beams an Expert to You Through Augmented Reality
techcrunch.com
techcrunch.com
I prototyped something like this on two separate occasions in 2012[1]. The first attempt was using a laser projector to do the AR in a way that multiple people could observe - I still think that's the ultimate way to go for this problem space. The second attempt was part of a hackathon at Bigcommerce. We skipped the AR part, but worked on the live two-way comms bit, synchronising the content between two whiteboards. That worked well, but was totally outside the company's remit.
Ultimately, I could never find a suitable team or investment to carry this forward in Australia so I just dropped it. Feel free to reach out at tom@jugglethis.net if you want to discuss this further.
[1] See http://www.drtomallen.com/blog/the-magic-torch-part-one