Static file blogging engine w/o user interface.
I blog in LiveJournal, but I dont trust LiveJournal to keep all my posts. For many reasons.
I setup self hosted Wordpress, but it is a source of maintenance pain, plus I post only for my friends and don't want to share it with the world.
I want to be able to post from my iOS devices, but I don't want to create new app for that.
Create an XMLRPC server, pretending to be a WordPress Blog. It will save posts to Dropbox and publish them to LiveJournal via XMLRPC. Use Wordpress iOS app to post.
Just an idea for now.