Yesterday, on July 28th, 2012, Sergey Brin gave a demo of Google Glass at the Google I/O conference. He announced that the Google Glass for Developers would be available in early 2013. The finalized version of the Google Glass, the one for consumers, will be not released until 2014, at the earliest. The google glass release date is still unannounced.
The technology behind this product, quite frankly, looks amazing.
To satiate your appetiate for the actualization of wearable computing in the meantime, you may be interested in