Getting the Google+ Feed for any profile in JSON
reddit.com
reddit.com
Are you interested in contributing?
Edit: Reading it again, it clearly states public posts only.
https://github.com/russellbeattie/plusfeed http://plusfeed.appspot.com/
"Gah... spent a lot more time than I wanted to cleaning up the http://plusfeed.appspot.com feeds. GOOG will eventually just add them, I'm not sure why I went through the effort. Was interesting playing with Python I guess... and a little of Django too..."
Personally, that's what drives me in this case: Learn something new, do some creative coding (without having to invest too much time like working on a 'real' project), provide something useful for those, who also already tamper with it, have fun. And maybe we stumble upon a useful idea, which can be extended, once the official API is out.
In my view, that makes it worth the effort.