Sun Solaris and Open Solaris?

What is the major difference between Sun Solaris 10 and Open Solaris?

I believe both are free now, is that true?

Open Solaris is a open source product that people can contribute code to. Sun Solaris 10 is completely controlled by sun and is closed source. That is the basic difference.

well, you can't say that solaris10 is closed source, because opensolaris uses the sources of the sunOS kernel and many other things from solaris10.
The OpenSolaris project is an open source project sponsored by Sun Microsystems, that is initially based on a subset of the source code for the Solaris Operating System. It is a nexus for a community development effort where developers from Sun and elsewhere can collaborate on developing and improving operating system technology. The OpenSolaris source code will find a variety of uses, including being the basis for future versions of the Solaris OS product, other operating system projects, and third-party products and distributions.
The main difference between the OpenSolaris project and the Solaris Operating System is that the OpenSolaris project does not provide an end-user product or complete distribution. Instead it is an open source code base, build tools necessary for developing with the code, and an infrastructure for communicating and sharing related information. Support for the code will be provided by the community; Sun offers no formal support for the OpenSolaris product in either source or binary form.
The Solaris OS is Sun's operating system distribution and is branded, tested, maintained and supported as a Sun product. Future releases of the Solaris OS will be built from the OpenSolaris source code, but will still be supported in the same manner as current versions of the Solaris OS. At any given time, there may be some software in either the OpenSolaris project or the Solaris OS product that is not present in the other. However, over time the intent is to release as much of the existing source code as possible through the OpenSolaris project and for future development of the source to take place in the OpenSolaris community.
there are already some disributions out based on the open sunOS kernel: eg.: www.gnusolaris.org

gP

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