This is a Locale Plug-in.
It enable you to detect application running.
Settings can be customize: Open menu and select "Settings".You can set specific rate to apply after the screen is turning on and the duration for this specific settings.
So you can modify plug-in behavior in order to quickly detect application. Keep in mind that if you increase check rate the plug-in will use more battery (even if no test had show a significant battery usage)
For each condition you can:
Now it's time for you to see how this plug-in can help you :)
Example: Activate GPS when google map is open, activate airplane mode when your children use is application...