Mono is an open source software to easily create cross platform applications. It is an open source implementation of Microsoft’s .Net Framework based on the ECMA standards for C# and the Common Language Runtime.
As this open source platofrm is built on Microsoft .Net, millions of deveopers are building applications in C# and a lot of books, websites, tutorials & source codes are available to get help from.
Mono Features
- Higher-Level Programming
- comprehensive class library provides thousands of built in classes
- Common Language Runtime (CLR)
Mono is built to be cross platform. Mono runs on Linux, Microsoft Windows, Mac OS X, BSD, and Sun Solaris, etc… In short, Mono allows you to run on nearly any computer in existance.
Website: http://mono-project.com/Start
Examples: http://mono-project.com/Screenshots#Open_Source_Applications
Download: http://www.go-mono.com/mono-downloads/download.html