Ok, tired of waiting for someone to guess an answer, I went for reliable sources and mailed both Streamcast and Rebol. This is what Carl Sassenrath (head of Rebol) answered.

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Date: Thu, 14 Mar 2002 15:21:22 -0800
From: Carl Sassenrath
To: Jon Åslund
Subject: Re: Morpheus 2.0

Yes... preview edition was just something they did in order
to deal with the Kazaa problem. It's not 2.0.

Yes, we think so too.

-Carl

At 3/14/02 10:35 PM +0100, you wrote:

>According to this press release:
>
> http://www.rebol.com/news1a31.html
>
>Morpheus will base it's next version (2.0) on REBOL IOS. I was very
>surprised to see the morpheus preview edition to be based on
>gnucleus. Are you still working with Morpheus on this? It would be
>great to see REBOL out on the Internet on a big scale, which clearly
>will happen if Morpheus is to build their new version on REBOL IOS.
>
>--
>___\ Jon Åslund