spaces and dual monitor: separate setup for each monitor? I have two monitors and I would like to handle the virtual spaces separately on each. I.e. changing the space on one monitor shouldn't change the space on the other. (I wonder why this isn't even the default because it seems to me like it makes more sense.)

Is there any way to do this?
It's not the exact answer you were looking for in the Mac OS but it is an alternative. 

You can try TotalSpaces at http://totalspaces.binaryage.com/

It's been the only thing close to what you are looking for.