bluelock.pl is designed to lock a display or terminal once a Bluetooth device (like a cell phone) is out of range. The script queries the RSSI (signal strength) of a Bluetooth device. Once the RSSI passes above a certain threshold a timer is started, and once the timer expires a locking program is run.
Sunscape is a screen saver and locker for PocketPC mobile devices. It is similar to the iPhone slide to unlock feature, but targets the Windows Mobile system. It provides an interface that displays configurable information about the handheld device. The graphics used are completely replaceable, allowing users to build their preferred custom interface. The main goals are to keep Sunscape completely configurable to the user as well as maintaining a very low memory footprint.
DeskToy is a 3D screensaver for OS X. A complex set of linked pendulums is displayed in perpetual motion. The behavior of the view and the behavior of the model is highly configurable using the screensaver property sheet. The screen saver is shipped in Universal Binary format for OS X 10.4+.
LifeSaver is a Mac OS X screensaver that simulates Conway's game of life on screen. The starting configurations for the cells are randomly selected from predetermined configurations and from randomly generated configurations. MandelSaver is a Mac OS X screensaver that draws colorised Mandelbrot images on the screen. The position and coloration of the subset of the fractal displayed is randomly selected.