Dan wrote:
No, AmigaOS4 is built from the original source code but cleaned up and improved beyond recognition!
I'm not sure building from the original source code is really better than doing a modern functional equivalent from a fresh start, even when the original source code is intact. But it's too arcane to debate. Labors of love such as AmigaOS4 and MorphOS deserve to succeed; let's hope they both find a niche. :-)
-- gary_c