There is an in-progress Kickstarter campaign which is building a 3D sensing device. While it probably wont be at the level of established non-mobile 3D scanners, the fact that it attaches to your iPad is pretty amazing.
As someone who is involved in the music and film industries, I can see a lot possibilities. Here are a few that I came up with immediately:
- Location scouting for films – quick 3D models of places
- Record keeping of microphone placement in recording studios
- 3D representation of artwork