file-synchronization tool for Unix and Windows. It allows two replicas of a collection of files and directories to be stored on different hosts (or different disks on the same host), modified separately, and then brought up to date.
a modular, plugin-driven peer-to-peer client framework which is designed with true multi-network downloads in mind. It can be used directly via the built-in shell functionality, or via external user interfaces.
a 3D simulation environment designed for the simulation of decentralized systems and artificial life. While the concept is similar to existing packages such as Swarm and StarLogo, the implementation, which simulates both continuous time and continuous 3D
lets you easily share a single mouse and keyboard between multiple computers with different operating systems, each with its own display, without special hardware. It's intended for users with multiple computers on their desk.
port of the X Window System server to Windows. It shares the same source code base as Cygwin/X, but does not depend on the Cygwin environment or cygwin1.dll. Xming is a fully featured X11 server for Windows that is very simple to install and use.
mp3 stream recorder (unix / win32 / winamp plugin) using the title+artist as filename (+ idv3 tag) and while ripping, it broadcasts the stream locally so you can listen to it simultaneously.
web server scanner which performs comprehensive tests against web servers for multiple items, including over 3300 potentially dangerous files/CGIs, versions on over 625 servers, and version specific problems on over 230 servers. Scan items and plugins are
a popular version control system designed to handle very large projects with speed and efficiency; it is used mainly for various open source projects, most notably the Linux kernel.
a simple client and server to allow the forwarding of Lan packets over the Internet or in an intranet network. It was made to play multiplayer games with no direct IP connection when players are not in the same local network
implements Windows kernel API and NDIS API within Linux kernel. A Windows driver for wireless network card is then linked to this implementation so that the driver runs natively, as though it is in Windows, without binary emulation.
Window Switch is a tool which allows you to display running applications on other computers than the one you start them on, programs can be imitated remotely Once an application has been started via a winswitch server, it can be displayed on other machines running winswitch client, as required. Interestingly they seem to support server service with a pay option (security may be a concern)