So games are a natural applications of collaborative system
Othello is an interesting and serious 2 player game where you can also play as an individual against the computer
The magic cube can use use the the ability of transferring master status to allow a slave(observer) take control and solve the puzzle started by the original master
We showed two simple physics applications but we also have more sophisticated shared applets illustrating planetary motion and computational fluid dynamics (CFD)
CFD just shares data and display options and solves the equations (written in Java) fully on each machine
Planetary motion will start and stop the planets motion and then resume the simulation