^Why not just: The Maemo operating system (which includes several iterations) was originally developed by Nokia & used in several commercially available devices, including the N900 and the N9. Much of Maemo is currently open source software as defined by the Open Software Foundation and, as such, continues to be improved by a volunteer community at www.maemo.org.
Is harmattan registered by Nokia, or did I miss that?
If you want to suggest a different name, please do it fast. And make sure the name isn't a trademark and get the domain name first. Once you mention it, someone is likely to scoop up the domain name and squat on it. We already have hildonfoundation.org and maemocommunity.org in pocket.