So...

Has anything actually worth using and still in use today ever been made entirely in Lisp?

>>5
not much though, AFAIK they usually use either Python or Java for projects.

>>4
Nope! Emacs is just a Lisp interpreter; it's written in C.

>>3
Windows is written in C++--+.

>>2
They used to be all Lisp. The newer code is Java, and all the Lisp code is being pretty much phased out since Java programmers are much easier to find. I suppose eventually the Lisp will be phased out entirely.

>>1
http://common-lisp.net/project/lisppaste/
http://common-lisp.net/project/clkd/
... actually, just browse through http://common-lisp.net/project/
http://www.kahua.org/show/en
http://freshmeat.net/projects/aftpd/
http://www.gnu.org/software/mcron/
http://www.scsh.net/resources/graphics.html
(and a handful of other more-or-less-crap window managers)