move...
there is a demo on the PSN, so its well worth giving it a go.... but basically you use a combination of the move controller and either the navigation controller or the left side of the six-axis controller... its a little tricky, but onve you get the hang of it, almost as quick as a mouse, possibly quicker with practice (ive only been playing the demo)
basically the move controller is used to zoom in and out and select units, while the six-axis/nav cintroller pans the screen about and selects units... I was unsure how it would tie together, but its very quick, selecting units or points on the field, you just point the controller and your there!