dyscode: Thanks for for reminding me1 I have Enjoy but it should not be necessary for game that officially claims to supports controllers and Steam Big Picture.
AND you cannot reassign the Key controls, while the worst keyboard layout I`ve seen for a long time.
PenutBrittle: A game can support Big Picture and controllers all it wants, but you still need to install a driver for your computer itself to pick up the controller's signal. There is absolutely nothing a dev can do in this case since obviously Microsoft doesn't really care about making sure their controllers support Mac out of the box, and the only 360 controller drivers for Mac are unofficial and unsupported patches from enthusiasts.
Thanks for all the replies!
I have the tattieboogle driver 0.12 and it works perfectly on 10.8.3 and with lots of other controller games
e.g. Limbo, Trine, Rochard, etc. Just PID refuses to work properply with it.