Is it possible to have more than one active windows on Lion? I am in a situation where I really need to have multiple windows to be active simultaneously. I know it is against the optimization principle of most operating systems, but is it possible?

Here is my story: I will be presenting a network project this weekend at somewhere far from my university. We have a working demo that shows a synchronized car racing game. Ideally, to present our demo I need at least two Macs: I can make our demo run on all machines and show the effect of synchronization. However, I have only one Mac - my laptop. So I came up with a solution: to run multiple instances of our demo software on my laptop. I tested it and it worked fine. Although it's networking on the same machine, it is still networking. But the problem is: Lion would only give me one active window at a time. I can switch between windows of couse, but only the currently active window would update, other windows just remain static. To show a synchronized game, I need multiple windows to be active - I want the multiple demo windows to update simultaneously, as if they were on different machines.

To re-state my question: I want to place, say four windows on my screen and I want all of them to be active windows. Is that possible at all on Lion?
Although it doesn't work with all of the applications, you could use the flag -n for the Terminal's open command.


  -n  Open a new instance of the application(s) even if one is already running.