Cairo

I'm surprised that I've not heard of Cairo before ... maybe I did, but mistook it for this Microsoft Windows version that never eventuated.

In any case, this Cairo looks very nice. We should see it sometime later this year, because a release milestone was recently provided to alpha testers.

Unfortunately, the "Features" section of their website links to pages that simply say it's in development, so I couldn't find many details. I just know that it replaces the "start" menu and has its own Explorer equivalent.

The screenshots look good, anyway, and I look forward to the time that I can have a play with it.