Tribblix is an operating system derived from OpenSolaris, OpenIndiana, and Illumos, with a retro style and modern components.
NEWS: March 23rd 2015: Milestone 14 released, includes OpenSSL 1.0.2a, Xfce 4.12, Enlightenment 0.19, and plenty of updates. (Only x86 at this time, SPARC will be along shortly.)
It's proved that the concept can work, and while it certainly isn't fully functional, complete, or yet suitable for production use, it's getting closer. You can download the image, install to a hard drive, and use it.