OStatus-enabled WordPress Instance
The heavy lifting is done via the OStatus for WordPress and its dependencies.
Once those are installed, anybody with a StatusNet account (in reality anybody with a OStatus-compatible account, I suppose) can subscribe to the blog just like subscribing to a remote user. Once subscribed, blog posts should appear in your stream. If you reply to a blog post, it'll appear as a comment on the blog.
I've added a small form in the top menu (click on the StatusNet icon) to make this a little bit more discoverable.
There is one problem that we ran into: comments made via StatusNet would appear multiple times on the WordPress side. To fix it, modify
/wp-content/plugins/salmon/plugin.php so that this part:
header('HTTP/1.1 201 Created'); SalmonPlugin::endpoint("The Salmon entry was posted.");
header('HTTP/1.1 200 OK'); // SalmonPlugin::endpoint("The Salmon entry was posted.");