martiniturbide
But don't underestimate Microsoft. They went very hard to market Windows as home product and also as a server in corporations. But they also did some shady stuff. Read: https://www.quora.com/Why-did-IBMs-OS-2-project-lose-to-Micr...
And later with open source: - https://en.wikipedia.org/wiki/Halloween_documents
That's why young people today, don't understand older guys from the 90's that hate Microsoft. Microsoft was really evil that decade.
There are actually developers that had given a lot of open source software to the platform (OS/2) without expecting nothing in return. But cloning OS/2 to turn it open source is a very long task and we don't have enough hands on the community.
But eComStation and ArcaOS uses IBM's binaries (OS/2 binaries), so to be a legal product an agreement and $$$ has to be given to IBM to be able to distribute a resell the binaries. So, it can not be a free product until some developers clone an open source replacement for the OS/2's binaries.
If you have doubts you can visit OS2World.com and ask on the forum.