Thanks for the analysis. I agree that the ODF support side is critical. Although some have criticized the he move to Apache 2.0 license from the previous copyleft LGPLv4, the Free Software Foundation actually recommends this:

“There are only a couple of kinds of projects that we think should not have any copyleft at all. The first is very small projects.
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The second is projects that implement free standards that are competing against proprietary standards, such as Ogg Vorbis (which competes against MP3 audio) and WebM (which competes against MPEG-4 video). For these projects, widespread use of the code is vital for advancing the cause of free software, and does more good than a copyleft on the project’s code would do.”

http://www.gnu.org/licenses/license-recommendations.html

As the leading application supporting ODF, I think this is a good argument for using a permissive license for OpenOffice, to make this ODF support ubiquitous.