Just when you thought Google Glass was dead and buried (thanks to public stigma), yesterday they announced an enterprise version: http://www.x.company/glass/
Here's a blog post from the Glass project lead (Jay Kothari) that explains some of the things they're doing in the enterprise.
Using these for helping factory workers in assembly, inventory management, etc., on first glance looks like a no-brainer. Giving a surgeon the ability to monitor vital signs of a patient while elbow deep in a heart transplant, amazing. Seems like enterprise is where the Glass project should have started in the first place.