Cunning Fox is a tool to stop and continue the running applications under mac os x, so that you can "pause" other applications to gain optimal performance for a specific application moreover it also provides information about application such as CPU usage memory etc.

Just like it says it's a GREAT tool to kill running applications that are locked up - non responsive -etc. never has failed me and it's been a life saver, as I overwork my Mac to the limit and beyond 100% of the time.