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.
Sounds fun, but quite difficult because of all who will probably be quite difficult with all the people who visit Shibuya. It sounds a tiny bit like "The World Ends With You", actually, but using science rather than supernatural forces and without the noise (monsters).
At least they did this collaboration with a good anime, rather than Lucky Star or something like that.