This is a test of using OpenOffice 3.0 for blog entry. This actually appears to work pretty well. I am able to publish in draft stage and continue to edit.
You do have to be cognizant of not leaving whitespace at the end of the document.
Here is the publishing dialog that is available when submitting the content:
If “Send as _d_raft " is unchecked, then it will be published to the blog live.