Google just updated its official Google+ app for iPhone, now with support for iPad and iPod Touch devices. It also brings new features such as: Aggregated circle add notifications, Huddle settings, and sort of Performance and stability improvements. I just updated mine in iPhone, and I didn’t see any significant difference just yet though – but I’ll try to find out.
If interested, you may download the updated version via this link. Of course, do let us know what you think about it.