Mixed reality glasses

I've been intrigued by these augmented/mixed reality glasses since I first saw those. At the same time, those feel such unusable due to interfering with your vision, but still looking such a convenient on having your hands free. I can only imagine what rules and laws will be invented to regulate the usage of those. There's still something so cool about those. Here's the latest Google project "Project Glass", which seems to have an actual prototype already existing.
 

There's nothing really new in this Google concept though. Here's few years old concept video about the same subject from Nokia. I just hope that Google is more serious and longer in the way to actually implement this than Nokia was. i haven't head anything about this project since this video.

Written by +Henri Hämäläinen