It provides a smooth interface for publishing and managing your blog posts without needing to deal web-based admin pages and editors. Use any editor you like, such as CotEditor or iA Writer and let Publicist handle the rest!
It has an amazing icon created by the talented Florian. I insisted it match Formatter's purple and he took care of the rest. He does good work, you should hire him.
Publicist currently supports posting, including images, to: