Happy birthday, indeed! I love the independent spirit of the Debian project, including such extraordinary measures as wrapping their userland around the FreeBSD kernel in addition to Linux[0]. Recently, I've enjoyed using Crunchbang[1], a slick, simple desktop built on top of Debian. To the next 20 years!
[0] http://www.debian.org/ports/kfreebsd-gnu/ [1] http://crunchbang.org/