According to IT Media, Tokyu Railway and National Institute of Informatics will carry out a PR experiment of Augmented Reality (AR) tied-up with Dennou Coil and Doraemon. They will plant "Meta Bug pin" around Shibuya station and users look for them by iPhone application. If you collect all the Meta Bugs, you can exchange it with a meal ticket.

Image of the Meta Bug pin

The project is a part of Japan Ministry of Economy, Trade and Industry (METI)'s "e-space Demonstration Project".

According to Sankei newspaper, METI collaborated with VOCALOID Hatsune Miku to promote the recycling campaign of mobile phones.

Tansu Keitai official website

Hatsune Miku sings "Tansu Keitai Atsume-tai no Uta" composed by the head of Environment Recycling Office and the mp3 file is available in the official website for downloading.

Sources:
IT Media
Sankei