updated 02:50 pm EDT, Mon May 28, 2007
One Mac developer has released ScreenRecycler 1.0, a utility designed to turn a second computer into a second screen. ScreenRecycle uses VNC as a transport protocol, enabling the software to work with PC and Linux systems as well as Macs. ScreenRecycler runs natively on Intel-based Macs as a Universal Binary, and uses Apple's Bonjour technology to automatically set up the network to enable another screen with no configuration. Once the connection is established, the extra display appears in the system preferences pane and is adjustable as any other screen. The software is priced at $30 and requires Mac OS X 10.4 or later, as well as a VNC client.