NeoMach is a project to design and implement new features into GNUMach and, in a more general scope, experiment about real microkernel systems. The intention is that some of the code developed here, enters into official GNUMach.
The GNU Hurd is the GNU project's replacement for the Unix kernel. The Hurd is a collection of servers that run on the Mach microkernel to implement file systems, network protocols, file access control, and other features that are implemented by Unix