Export Google+ user activity to other services like Twitter, Facebook or Google Reader.
Google+ doesn't provide any means to export user posts apart from using its API. This is a convenience tool that creates an RSS feed so it can be easily integrated with other services. An example of what you get.
Pro tip These services check feeds regularly but if you don't want to wait many of them also allow you to check them manually.
This is a good option if you are already using a feed reader (like Google Reader), follow few users and don't want to open Google+ site to see what's new.
Source code and feedback. Only your public data is collected, including your id and public posts, and it is used only to provide this service.