Ask Slashdot: Innovative Operating Systems/Distros In 2015?

iamacat writes: Back in 90s, we used Linux not only because of open source, but also for innovative features not found in commercial operating systems — better multitasking, network power features like slirp and masquerading, free developer tools for many languages. Nowadays OSX and Windows caught up in these areas and mainstream distros like Ubuntu dumbed down in default configuration. So where to go for active innovation like 3D/VR desktop, artificial intelligence, drag and drop ability to mash up UI of multiple apps or just drastically better performance? Something maybe rough around the edges but usable and exciting enough to use as daily desktop?