Teddy Hyde is the no compromises, extensible editor for GitHub (with a focus on Jekyll blogging).
100% open source. Find it on Github @ http://github.com/xrd/TeddyHyde
Now with secure oAuth login. Supports two-factor authentication and never asks for your password directly.
Edit files directly on GitHub and publish to GitHub pages.
Preview markdown or asciidoc pages with just a swipe.
Intelligent editor knows about YAML Front Matter for Jekyll posts.
Upload images which are resized to a mobile friendly version and a thumbnail.
Add your own extensions to the editor using "Hyde Transformations."
See more at TeddyHyde.com or Blog.TeddyHyde.com.
Fix bug introduced by GitHub API change; writing to repos is supported again. And, UI fixes.
Add support for contextual templates as documented on the blog: http://bit.ly/1o3Z48z
Add support for organizations. Click on the avatar link to switch to other organizations and edit files there.
Added oAuth authentication (instead of username/password) which supports 2 factor authentication. Thanks to David Wu for his great oAuth library for Android (https://github.com/wuman/android-oauth-client/)