Last I read, the second screen in a dual monitor setup was rendered useless in DP4 when you were using full screen apps. Has this been fixed in the gm or no?
The question is, will Apple "fix" it? They may not care about secondary monitor. Then again, they do make the Cinema display.
Anyway, I would think the most logical way to do it, would be to display the desktop to the right (or left, depending on how the monitor is setup) on the monitor. What do you guys think.