Sage2 [0] is one open source option with support for both the remote collaboration and whiteboard components, although it's more focused on larger arrays of ave

Sage2 [0] is one open source option with support for both the remote collaboration and whiteboard components, although it's more focused on larger arrays of average resolution screens. I've used it and it's quite functional, even if not as polished as Microsoft's offering. [0] http://sage2.sagecommons.org/ http://sage2.sagecommons.org/