“…The rapid growth of computer networks over the past decade has provided the impetus for adding the sense of touch to applications, such as cooperative industrial design (Glencross et al, 2007), surgical teletraining (Mitra & Niemeyer, 2007), telerehabilitation (Sugarman, Dayan, Weisel-Eichler, & Tiran, 2006), and multi-user on-line computer games (Kim, Han, Kim, Kim, & Song, 2007). In these applications, multiple distant users must interact with other users and/or with the shared virtual environment simultaneously.…”