Backward compatibility may be a weakness in security, but a strength otherwise. I like it very much that I can still run many of my games that I purchased in th

Backward compatibility may be a weakness in security, but a strength otherwise. I like it very much that I can still run many of my games that I purchased in the 90's on the Windows 7. AFAICT, Linux can't easily offer such a long binary backwards compatibility (please correct me if I'm wrong). I also think that - along the lines of what tmountain said above - more important than open source code, is that protocols and formats are open.