I'm guessing my Ruby @posterous to Markdown export script is going to get some use
The goal is to have a script that exports an entire Posterous blog to disk, formatted in such a way to easily drop into the _posts folder of popular static site generators such as Octopress. Goals "just works" on Mac OS X edit file or pass in username / API tokens on the command line output all posts as individual Markdown-formatted text files support for categories download and locally store Posterous-hosted images How to Use Download the file Edit the file with name of your Posterous site + set file paths Run script ./posterous-export.rb
Full article:
http://projects.bmannconsulting.com/posterous-export/