[iloveitaly]

are there any very usefull ones out there? /forums/ubbthreads/images/graemlins/grin.gif

[TomMacs]

Yeah there's a few
bzflag
megamek
fink One of the best
OpenOffice.Org It's a great alternative to quit that MS habit
oroborosx
osxutils

Here to search for source go to this great site
sourceforge
And remember use the source

[Duke_Thomas]

No, they're all useless. All perfectly useless.
Of course there is useful open source software. /forums/ubbthreads/images/graemlins/wink.gif Speaking personally, I use xemacs for most code editing, eclipse for when I have the misfortune to edit Java code, tetex (latex, pdflatex, etc.) for formatting papers, aspell for checking spelling in my papers, gcc for compiling C/ObjC/C code, g77 for compiling Fortran (ugh) code, python and perl and sml and clisp for, eh, python and perl and sml and lisp, yacc for help writing parsers, and apache for my machine's web server. I use tcsh for my shell, during the use of which I am apt to use little things like ls, cd, find, and grep. All of this is on a Mac system running a darwin kernel, with a web browser named Safari that uses the khtml rendering library. In my office in the department I run a system which is nothing but completely open source (except for matlab). I imagine I could go on forever, but I'll spare you since I imagine you're already clawing at your eyes. /forums/ubbthreads/images/graemlins/smile.gif What your definition of "useful" is will change depending on your occupation and tastes of course.
I'm already looking forward to DrNiKoN's contribution to this thread. /forums/ubbthreads/images/graemlins/smile.gif

[TomMacs]

isn't "chess" open source?

[Dr-NiKoN]

[indent]In reply to:

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I'm already looking forward to DrNiKoN's contribution to this thread.

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aterm, emacs/vim(I use both!), mutt, procmail, sendmail/postfix(I use both!). the gimp, xmms, mplayer, mozilla firebird, ssh/scp, rsync, netatalk(obviously not on OS X), irssi, postgresql, gkrellm..
Most people probably knows that there are usefull open sourced programs. The question should rather be: "Which open sourced program is usefull for doing X task".
The best way to find this out is to install pure Darwin or NetBSD on your mac, and live in a "open sourced only" world for a couple of months. You will find out that you can do mostly the exact same stuff you did in OS X(would require a lot more hacking around though ).
[indent]In reply to:

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isn't "chess" open source?

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Yup, the engine is GNU and the GUI/glue code is open sourced by Apple.
nikon