I picked up a Move bundle today, so I've been testing it out on the PS3 version of Extraction. I've been through the first few levels, and so far I have to say the Move works excellently for this game, about as well as the Wiimote + Nunchuck did...with a few exceptions: first, you can't use the D-pad or the Analog Stick on the Nav controller to manually to select specific weapons like you could on the Wii version with the Nunchuk. You can use the D-pad Left or Right buttons to cycle through your weapons, but it's much easier to just hit the Triangle button on the main Move controller. Using Melee with the Circle button + shaking the Move controller is also pretty awkward, definitely not as nice as holding a button on the Nunchuk and shaking the nunchuk.
Overall, unsurprisingly if you're going to play the PS3 version of Extraction, Move support is kind of a must as we figured.