Tribblix is an operating system derived from OpenSolaris, OpenIndiana, and Illumos, with a retro style and modern components.
NEWS: April 28th 2015: Milestone 15 released, includes OpenSSL 1.0.2a, Xfce 4.12, Enlightenment 0.19, and plenty of updates. Includes critical functional and security fixes relative to Milestone 14, and is available for both x86 and SPARC.
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.