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Concerning the "notability" tag on the article page
It doesn't seem obvious to me that Xenomai is a "product" or "service" of any company. Xenomai is an open source project that adds real time capabilities to the very notable Linux operating system. It is pretty widely used by technology companies and university laboratories, when they need that sort of thing and they'd rather not pay for one of the commercial alternatives. But I don't know who would write about that in what you would call a "secondary" source. (But then, lots of technology-related articles have that problem, don't they?) —Preceding unsigned comment added by 184.108.40.206 (talk) 00:16, 15 December 2009 (UTC)