In Tokyo Game show 2009, Japanese researchers(Tachi Laboratory of Keio University Graduate School of Media Design and Kawakami Laboratory of the Graduate School of Information Science and Technology at the University of Tokyo) presented 3 innovatiove devices, Pen de Touch, Gravity Grabber and Twinkle.

The interesting thing is the Gravity Grabber.Reseachers adds virtual sense of touch on Augmented Reality technology.

[source: http://tachilab.org]

Gravity Grabber is a device that is cattached to a fingertip. If users move or hold an obbject on display (AR based), they can feel weight and shearing force by tightening and loosening a belt.

2 demo vedios of Gravity Grabber:

http://www.youtube.com/watch?v=gVNbe2GdG_c

http://www.youtube.com/watch?v=hRWKGRyfRrk

Other info about Pen de Touch and Twinkle.