I just rolled GNU/Hurd 2015 into a VM. It's early, but the first thing I'll note is that I felt for the first time that GNU/Hurd is a deployable OS. Still, I need that 64-bit version... killing me, here!
Do you have any info or a website you could point me to on how to build the image into a virtualbox VM? Running VBoxManage from their guide [1] isn't working for me. I can create the VDI file but on boot I'm getting an error saying hd0s1 isn't found >_<