A Google+ public feed module for Drupal 7.
This is a pretty simple, tiny little module, which uses the G+ API v1 to retrieve a user's public stream. You'll need a G+ API key, and to know your G+ User ID. To find this, go here, and extract the long number between plus.google.com/ and /posts.
It presents itself as a very basic, table-organised list of the user's latest posts, with a each post linking back to its origin on G+. Check it out in action in the right-hand sidebar on my tech blog.