If you didn't know already, I will make a talk at fosdem in the microkernel room. http://www.gnu.org/software/hurd/community/meetings/fosdem_2013.html in short: “The GNU/Hurd architecture, nifty features, and latest news” I'll surely reuse some of the material from my GHM talk (http://www.gnu.org/ghm/2011/paris/slides/samuel-thibault-hurd.pdf) but people might have ideas about some things to add, notably the nifty features? Samuel