I've just read Bruce Perens blog about the Novell and Microsoft agreement.
One sentence that made me think is “…Novell will help Microsoft turn back the Open Document Format and substitute something Microsoft controls…” – now this is Bruce's not-so-neutral opinion, but I personally read this as “Novell might be persuaded to stop actively pushing ODF”. Maybe I misunderstand the agreement.
Basically my concern is simply thus: Why is Microsoft partnering with Novell? I'm sure they're not doing it for the fuzzy pink feeling, but rather long term commercial gain.