Wew, 2018 and beyond is a fruity time to be alive! Though this does carry some of the same connotations as being able to 'read someone's mind', I would argue that it is closer to providing remote access to the use of someone else's eyes!

To answer your question regarding what I would use this technology for; I wonder with advances in this technology and neuroscience if it could be eventually possible to export the images derived through this tech and to import to someone else's brain? Imagine the prospects of this for someone who doesn't have functional sight.

In any case, it's exciting if sometimes scary times here on Earth.