Compared the selling of music to the new world of application servers. Music industry has a ten year leap over software companies. The dominant cost of development is in software development. Software is also where the product's value lies. Hardware and software are the same, vendors are essentially selling content.
Openness is independent of coding standards.
Red Hat's Ecos is open source, was designed for testability from the beginning, and has an open source test suite. The same could be said for proprietary Unix vendors, the software is a big mish-mash. Embedded developers have an ethic for high quality software, this is a critical factor. Beware of the expense involved in wholesale redevelopment of existing systems. Cautioned against staying in business primarily by hiding your source code.