Google Glass

Google Glass is the newest piece of technology from Google that has been in the hands of beta testers (members of the public who applied for the trial) for almost four months.
Google Glass is a wearable computer with an optical head-mounted display that is being developed by Google in the Project Glass research and development project, with a mission of producing a mass-market ubiquitous computer. Google Glass displays information in a smartphone-like hands-free format, that can communicate with the Internet via natural language voice commands.
The new device allows the wearer to record what they are seeing, as well as input commands via speech recognition (just as Apple's Siri does). The new device has been compared to a smart phone that you wear.

This new revolution in smart phone technology is particularly convenient to society through the way that you can easily record videos, which would be very handy if you were a student in a lecture, or a businessman in a meeting: it means that you no longer have to strain your hands writing endless pages of notes.
The impracticality of a hands-free kit when driving or doing any other kind of activity that requires use of both your hands has been abolished through the innovative design and user interface, which is entirely speech recognition.

There are downfalls to this design, however, as the lack of buttons means that if there is an issue with the speech software, you're in a spot of bother. As well as this, the placement of the screen being so close to the eye could cause damage to the eye if exposed to the device for a lengthy period of time. It could also cause danger as the screen may obscure proper vision.