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We have developed a wearable system for mobile distributed
collaboration called HandsInAir using emerging wireless and mobile technologies.
This system was developed to support real world scenarios in which a remote mobile
helper guides a local mobile worker in the completion of a physical task. HandsInAir
consists of a helper unit and a worker unit. Both units are equipped with wearable
devices having the same hardware configuration, but running different pieces of
software to support the distinct roles of the collaborators (helper and worker).
The two sides are connected via a wireless network and the collaboration partners
can communicate with each other via audio and visual links. In this paper we describe
the technical implementation of the system and present a preliminary evaluation
of it. The paper concludes with a brief discussion of possible future work for
further improvements and new developments.