I have an admission. I have been using Leap Motion and it's good but it's also early. I am still experimenting with it as basically a go between for 3d scans and a 3d printer. The ultimate goal is to be able to manipulate and adjust the 3d scan to modify and possibly even correct design. There are paid Autocad apps available in the Airspace store. I do not think there is a competitive advantage yet but when it comes to a 3d space the mouse and keyboard is an outdated tool.
I admit 3D fashion for fingernails, is still missing from 50% of the population. I don't know whether it will encourage the male sex to adopt fingernail art but there are textures that acrylics cannot mimic. It also inspires trends that show up on the Grammy red carpet. Perhaps we will see these on in 2015.