Reality is that many people have access to tools that open this "proprietary format". In fact there are no less than three free viewers/editors available for the N900 capable of reading the document in this format: KOffice, AbiWord, and DocsToGo. The former two being able to edit it once opened, and the latter requiring a trial/paid version to edit. For desktop users, there's all that and OpenOffice. The PDF version (also "proprietary") has several opensource viewers available.

So can we please stop bickering about the container format now, and focus on the content?

Realistically, we're not looking for someone to edit the document and send it back to us. Getting a hundred marked up copies of the document mailed to us with random changes and no discussion on what needs to be addressed or why those changes are important would be impossible to manage, and would leave the community out of the discussion. The important part is the discussion, not the edit-ability of the document.

Said another way: It would be far more helpful if you opened it, read it, and made comments on the content instead of the container. The (open source) tools are easily available to do so...