Mono
Version: 1.2.2.1_0 Framework ||
Release Date: 1970-01-01 ||
License: Other Open Source
From the site: "Mono provides the necessary software to develop and run .NET client and server applications on Linux, Solaris, Mac OS X, Windows, and Unix. Sponsored by Novell (http://www.novell.com), the Mono open source project has an active and enthusiastic contributing community and is positioned to become the leading choice for development of Linux applications."




2 Opinions:
I have a Mac at home, use windows at work. Mono allows me to compile most of my .Net at home (and frees me to use TextMate). Also the compiler finds things the MS one does not.
Mono is useful in assisting with cross-platform development of .NET apps.
The Framework is also needed by end users installing and using those apps on OS X...
Version 1.1.13.8_0 for the PPC is the latest "stable" version, but 1.1.16.1_0 is the latest, and is available here for PPC:
ftp://www.go-mono.com/archive/1.1.16.1/macos-10-ppc/0/MonoFramework-1.1.16.1_0.macos10.novell.ppc.dmg
and here for x86:
ftp://www.go-mono.com/archive/1.1.16.1/macos-10-x86/0/MonoFramework-1.1.16.1_0.macos10.novell.x86.dmg
Note that while the website lists the GNU FDL for the site, it doesn't explicitly say GPL for the source, so I'm specifying it as "other open source" for now.