If you've been wanting to get your Google+ action on not just on your Android powered device but your iOS powered device then you have only Apple to blame for your frustrations. Google has let the world know that they've submitted the app to Apple for approval and are waiting on only that at this point.
(Source: Google+ App awaiting Apple approval)
If you are interested in Google+ we've created a site dedicated entirely to it. If you need help, need a Google+ invite or anything else related to Google+ please be sure to check it out: Google+ / Google Plus Forum