Hey, if you don’t like any of the office programs you can use - you might give bittorrent sync a try.
http://community.wd.com/t5/My-Book-Live/BitTorrent-Sync-installation-script/td-p/588057
It was way easier to install than I expected with the help of the above thread. It’s super easy to use too. Note, the older versions had issues with never powering down so used a lot of battery but I read that problem should be solved with current update (though I’m having issues at the moment which hopefully can be resolved).
Also, right now, you can’t officially sync subfolders which is a huge bummer for me. But I assume they’ll change that probably sooner than later with future updates.
Hope you find what you want. I’m still leaning towards skydrive cause I hate all the android office apps but I guess my sister and mom are the android users so I’ll see what they want. Your list on which progams do work is helpful to me as it lets my family know their options. Thanks.
