For the uninitiated, Icaros Desktop (formerly VmwAROS) is a distribution of the AROS Research Operating System, which in turn is an open-source clone of AmigaOS 3.x. This is all explained in the post, but I thought I'd mention it in comments in case anybody pops in to gauge interest.
Commodore Amiga computers were a type of computer that was around from the mid 80s to the mid 90s. They had their own custom hardware and operating system. After Commodore went bust, some of the fans of the Amiga platform didn't want to see it die, so they started various hardware and software projects. AROS is one of the projects started around that time (started in 1995 if I recall correctly). AROS is an open-source operating system that closely follows the design of the operating system of the Amiga. Icaros is the flagship distro for AROS.