Why is Canonical bothering with the distribution of a binary ZFS module when building it via DKMS at install-time is already very simple (although, admittedly, time-consuming)? Their minimum system requirements, which gives the live environment plenty of resources to support compiling a kernel module, already weed out systems incapable of running ZFS. I just don't understand why Canonical's willing to take the risk of a successful copyright infringement suit involving the next Ubuntu release.