Use of wearable terminal attention! Leverage in Tokyo Olympic Games! ?

Interest for wearable device is getting hotter.
Google announced that Italian glasses maker, Luxottica, will cooperate with Google in Google glasses design, development, and sales field.
http://www.cnn.co.jp/tech/35045718.html

Facebook also announced it will buy up a company of virtual reality field.
http://www.huffingtonpost.jp/2014/03/25/facebook_n_5031718.html

In Tokyo Olympic Games in 2020, the use of wearable devices have been proposed.
It is full of curiosity that what kind of technological products are developed, or how those items and systems affect to social.