Update: The Official Native Google+ iPhone App is now available to download. Here are all the details.

Several images of the upcoming Google+ iPhone app have hit the Web, ahead of the application’s approval by Apple.

The news reached us earlier today via Brad McCarthy of The Next Web. As you can see in the above image, the application features five main icons – “Stream,” “Huddle,” “Photos,” “Profile” and “Circles” – as well as a section for users’ notifications. The application appears to look almost exactly the same as the Android app, which is available in private beta.

A few days ago, a Google employee announced that the aforementioned iPhone application has already been submitted to Apple, and is awaiting approval. The release of Google+ depends entirely upon the App Store approval team: The application could become available as early as this week, however the approval process could take a little longer (more in the region of two weeks, perhaps).

If you haven’t yet heard of Google+, the social network (which launched recently) is something of a Facebook competitor, allowing users to interact with friends online, view photos and participate in group chats (called “Huddles”). I’ve been playing around with Google+ for a few days, and I like the look of it. Indeed, the only thing that’s missing is a native iOS app.

We’ll keep you posted on the status of Google’s official Google+ iPhone app. In the meantime, if you’ve already encountered the service, feel free to post your thoughts in the comments.

Update: The Official Native Google+ iPhone App is now available to download. Here are all the details.