While you can attach photos to any update, you can also upload ones individually or in bulk via the Photos button on your Google+ home screen. One cool feature: Your photos homepage displays four albums ("From your circles," "Photos of you," "Your albums," and "From your phone) and flashes the images in a slideshow you can view from this screen.

The Google+ iPhone app makes uploading pictures from your phone particularly easy. Tap the album "From your phone." This will load all the photos you have stored on your iPhone. Then tap the individual pictures to select them and click Share.

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For a first release, the Google+ iPhone app is pretty solid. It's still early to see how the group chat feature, Huddle, will take off, but as Google+ opens the flood gates to more users, this is likely to become a popular element.