Oh boy have I tried just about everything. I've settled on a pretty nice solution: markdown files in my Dropbox directory. To edit them I use iA Writer (paid bu

Oh boy have I tried just about everything. I've settled on a pretty nice solution: markdown files in my Dropbox directory. To edit them I use iA Writer (paid but worth it) for a very nice markdown exciting experience without any special serialization format like all the others (just plain markdown files). I also use their Android app but for both platforms I could switch to any other app that edits markdown files. Total portability. Syncing is Dropbox's job.