Chromixium is linux distribution based on Ubuntu linux designed to mimic the appearance and features of Chrome OS. The main desktop looks similiar to Chrome OS desktop, Chromixium also uses Chrome webbrowser. But it has also power of desktop linux, so you can easily install full desktop applications like LibreOffice or BitTorrent client.
The last version of Chromixium (1.5) was released in July 2015 (i386 version) and in November 2015 (amd64 version), then the project was renamed to Cub Linux.
Links: Homepage [archived]