Multi-pointer and collaborative system for mobile devices

We introduce a new system to improve the collaboration possibilities among the participants in face-to-face meetings and working groups, called WallShare. WallShare is a new interaction device and a new platform to develop collaborative applications. The proposed system provides a shared zone that is displayed by a projector over a wall. Users can collaborate through the shared zone using their own mobile devices, such as mobile phones, PDAs, laptops and so on. To use the shared zone, users have their own cursors that allow them to share any kind of files, such as images, or documents. WallShare has been proved helpful to support distributed user interfaces. The usability evaluation also showed us that WallShare users' can perform a set of tasks with effectiveness, productivity and satisfaction.