I wore Xybernaut MAIV head mounted as well as the touch screen computer (separately) for a couple of months at work to test their usability. While there is a learning curve to using it as well as some time to get comfortable wearing a computer I found it to be a worthwhile experience. I found that different graphical user interfaces need to be implemented due to the form factor but I enjoyed the challenge. As you can see, the new hardware they are bringing to market is significantly smaller they have a way to go before wearable computing is adopted into the mainstream. But, many industries can benefit tremendously having their employees permanently attached to their computers with a wireless network connection.