I have made one for ubuntu, and it's foss: http://uberwriter.wolfvollprecht.de http://uberwriter.wolfvollprecht.de It's more or less an iA Writer clone but use

I have made one for ubuntu, and it's foss: http://uberwriter.wolfvollprecht.de http://uberwriter.wolfvollprecht.de It's more or less an iA Writer clone but uses pandoc as "backend" which is really powerful.