For Windows, there is Windows Live Writer, which is similar to MarsEdit, and can post to WordPress sites. Keith Dsouza created a plugin to interface with Windows Live Writer and All in One SEO Pack http://wordpress.org/extend/pl…..er-bridge/.
Of course, with a Windows machine, VM, or Parallels, I could use that, but I'd rather stay on the Max OS.
One possible solution would be for Semper Fi Web Design, the developers of AIOSEOP, to include support in AIOSEOP for Mac users to write our post in MarsEdit and put at the bottom or wherever of the post something like AIOSEOP-title="Some title" AIOSEOP-desc="some description" AIOSEOP-keywords="keyword1, keyword2" or something like that and have All in One SEO Pack strip it out and apply it as appropriate.
Better perhaps, to lobby MarsEdit or Ecto to work with Semper Fi. Anyone else have ideas?
Ecto for Mac OS X will integrate with All in One SEO Pack.
When you go to make a post, click on “extra”. At the bottom will be a section for custom fields (a table with two columns). Add three fields. In the left hand column, name them “title,” “description,” and “keywords”. In the right column, enter your title, description, and keywords. This will interface with All in One SEO Pack's system. Once you click publish, you can edit the post in wp-admin and you'll see that your title, description, and keywords are already there.
This did not work for me. It created three custom fields rather than populating the existing All-in-One-SEO fields.