I would like to add my support for import/export for ODT files.
We have several contributing users/writers working in a Lotus Notes 8 environment, and they have variously indicated that being able to use their basic office tool-set (Notes) for writing/editing would fit well with their new workflow. Many Gen-Y/Z souls seem to thrive on a bit of this/that/the other in parallel, so that authoring/reviewing happens conjointly with e-mails, IM, texts and net research(?).
Notes 8 includes a free Open Office word-processor (also sold stand-alone as Symphony -- a real blast from the past!) that is very capable, apart from paragraph numbering which is definitely a work-in-progress. And for the price, who's complaining :-)