Originally I sat down to write an iOS app. The thoughtstreams API currently only supports post to inbox. Eventually I realized the differentiator would have to be a killer text editor. About the same time I discovered Drafts. It's a pretty killer text editor.
It supports markdown and email and Dropbox and printing and so on and so forth.
I didn't think I could really do better so I decided to figure out the easiest way to post to thoughtstreams from Drafts. Eventually I realized it'd be a good excuse to use my free mailgun account.