Gentoo logo comes from some very nice work by http://emu.gentoo.org/~drobbins/gblend.png
Icons are equally good and available at http://www.kde-look.org/content/show.php?content=9502
The rest is just pure pure 64bit Gentoo goodness.
I wasn't happy with the font appearance and decided it needed smoothing a bit. Since all work I do is for myself primarily it retains the Gentoo~amd64 text, for anyone not running 64bit then the gradient fill on the background makes it easy to just clone from left to right and remove the text completely. alternatively shout out and I can remove it and send it along but I didn't consider it such a substantial or difficult alteration as to warrant posting two seperate designs.
Rgds & enjoy