Microsoft announced on May 21st that the new Service Pack for Office 2007 (SP2) will add native support for ODF and PDF files. Yes, that means opening and saving Open Document files (ODT for documents, ODS for spreadsheets, ODP for presentations), together with Microsoft-backed Open XML file format.
The official SharePoint blog quickly commented on the issue, too. Nice screenshot 😉
I think that this will mean, for SharePoint of course, a fully Microsoft-supported ODF and PDF IFilter, and maybe (although it’s a long shot) a DHTML viewer (à la Excel Services). Maybe not for the SharePoint 2007 SP2 but in time for SharePoint 2009. Who knows?