when

Know when someone spies on you (was NOYB).

Automate set up when you connect or remove an external display.

Prevent left/right drift when plugging in headphones.

Create 3D images that pop out when you stare at them.

Locks your Mac automatically when you step away.

Receive alerts when your brand is mentioned on the Web.

Locks your Mac when you leave and unlocks upon return.

Automatically launch, quit, or kill applications when others are launched or quit.

Locks your Mac when you walk away.

Notifications when hard drive space is low.