Synkron is a simple Qt application that allows you to sync folders, for example a flash disk with a folder on your hard disk.
Smultron is a text editor written in Cocoa for Mac OS X Leopard 10.5 which is designed to be both easy to use and powerful.
An OpenSource Software Release Code based on Web using PHP, JS, AJAX and others....
GeoGebra is free and multi-platform dynamic mathematics software for learning and teaching geometry, algebra, statistics, and calculus. Download the free software at http://www.geogebra.org. Find the source code at http://www.geogebra.org/trac