Golden Tour Slots Portable
You can use this script to set up a tour for your web site.
More Info 
Developer: users.globalnet.co.uk
License: Freeware
Operating System: All
Add a forum tour to your phpBB via ACP.
Developer: phpbb2hacks.de
License: Artistic License, GNU General Public License (GPL)
Operating System: Windows, Linux, BSD
Virtual Tour is a web tool designed to make it easy to stitch together pictures into an online virtual tour.
Developer: Jonathan Hayward
License: Perl License
Operating System: Unix/Linux
A portable and cycle-accurate NES/Famicom emulator written in C++.
Developer: nestopia
License: GNU General Public License (GPL)
Operating System: 32-bit MS Windows (NT/2000/XP)
Yabause is a portable Sega Saturn emulator.
Developer: yabause.org
License: GNU General Public License (GPL)
Operating System: All 32-bit MS Windows (95/98/NT/2000/XP), All POSIX (Linux/BSD/UNIX-like OSes), FreeBSD, Linux, OS X, Sega Dreamcast
A 3D and portable chess game with an embedded Artificial Intelligence and some pretty good graphics.
Developer: pouetchess
License: GNU General Public License (GPL)
Operating System: All 32-bit MS Windows (95/98/NT/2000/XP), OS Portable (Source code to work with many OS platforms), Linux
GPC-Slots 2 is a more advanced gpcslots.
Developer: gpcslots2
License: GNU General Public License (GPL)
Operating System: OS Independent (Written in an interpreted language)
Defence Station Portable is a Tower Defence game targeted for the PSP.
Developer: dsp
License: GNU General Public License (GPL)
Operating System: All 32-bit MS Windows (95/98/NT/2000/XP), OS Portable (Source code to work with many OS platforms), Linux, Console-based Platforms
Invisionix Systems' portable Instant Messenger (IRSIM) uses PHP and mySQL.
Developer: irsf
License: GNU Lesser General Public License (LGPL)
Operating System: MacOS X, OS Independent, Linux
Small and portable ICQ library and client written in pure Python.
Developer: lightdruid.com
License: MIT/X Consortium License
Operating System: OS Independent
Your own portable/invisible PC system.
Developer: Invisionix Systems
License: Freeware
Operating System: linux, windows, freebsd, osx, sun
This is an extension to the simple panorama viewer that allows you to play a little bit more with jQuery by adding interactivity to transform some panoramic views into a virtual tour.
Developer: openstudio.fr
License: Freeware
Operating System: All
As the visitors scroll up and down your site, the menu moves up and down with them.
Developer: javascriptsource.com
License: Freeware
Operating System: All
This is the first portable SMTP server for windows.
Developer: SourceForge.net
License: Freeware
Operating System: All
The Portable Coroutine Library (PCL) implements the low level functionality for coroutines.
Developer: xmailserver.org
License: Artistic License, GNU General Public License (GPL)
Operating System: Windows, Linux, Mac OS, BSD, Solaris
A heuristic approach to solving the Knight's Tour Puzzle.
Developer: Bijunsknightsto
License: Freeware
Operating System: All
The "Knight's Tour" is a puzzle the object is to move a knight, to every other square, landing on each square only once.
Developer: Azarknightstour
License: Freeware
Operating System: All
Cross platform GUI managing bookmarks and shortcuts in a portable way.
Developer: Pbstool
License: Freeware
Operating System: All
Orx is a portable, lightweight, plugin-based, data-driven and extremely easy to use 2D-oriented game engine.
Developer: Orx
License: Freeware
Operating System: Windows; Mac; Linux
Portable Graphics Lib is an graphics library developped in C++.
Developer: Portgraphlib
License: Freeware
Operating System: All