I'm very interested in the G+ and Pinterest support as well. I'm sure I speak for many in saying these two are pretty critical - in the US anyway. Google+ is still struggling a bit to really catch on but Pinterest is wildly popular. So if there were any prioritization in adding in these two, please start with Pinterest. Then if you can get Google+ in sometime later, I don't think you'd get too much grumbling from the users.
After new investigation, Google + do not allow automatic post, we have to candidate for their API, that what we've done, twice. There's an illegal way by using another account, unfortunately if Google detect it, your account will be closed. For pinterest, there's simply no API too.
The next version will include LinkedIn group post and vkontakte too. The version 2.0 is coming in the next 2 week.