Google glass ?

Google Glass is a wearable computer with a head-mounted display (HMD) that is being
developed by Google in the Project Glass research and
development project, with the mission of producing a mass-market ubiquitous computer.
Google Glass displays information in a smartphone -like hands-
free format,  that can interact with the Internet via natural language voice commands.
While the frames do not currently have lenses fitted to them, Google is considering partnering
with sunglass retailers such as Ray-Ban or Warby Parker , and may
also open retail stores to allow customers to try on the device.
However, Google mentioned the glasses will be modular and
therefore possibly attachable to normal prescription glasses.
The Explorer Edition cannot be used by people who wear prescription glasses, but Google has confirmed that Glass will eventually work with frames and
lenses that match the wearer's prescription.  Glass is being developed by Google X Lab,
which has worked on other futuristic technologies such as
driverless cars. The project was announced on Google+ by Project
Glass lead Babak Parviz, an electrical engineer who has also worked on putting displays into
contact lenses; Steve Lee, a project manager and "geolocation specialist"; and Sebastian Thrun , who developed Udacity as well as worked on the self-driving car project. Google has patented
the design of Project Glass.  Thad Starner, an AR expert, is a technical/lead manager on the project.
Source: wikipedia