Free whiteboard software for use with the wiimote whiteboard. Seems to have many of the features of popular retail interactive whiteboard software.

"Edusim is a free opensource 3D virtual world specifically for your classroom interactive whiteboard. Edusim is a powerful way to engage your students by bringing a 3D virtual environment that allows direct haptic manipulation of the 3D virtual learning objects directly from the interactive whiteboard surface."

Another screencapture tool to try out with wiimote whiteboard. Looks solid. *Updated: capture software is shareware. Bummer.