Google's social network has become a bit of a hotspot for Android-related discussions, and the G+ lock screen widget is a great way to keep up with the activity.
The Google+ widget shows a single-panel, image-centric display of the latest posts in your G+ stream. You can configure it to show all of your incoming posts, posts from the Google+ "What's Hot" stream, or posts from any individual circle you've created on your account. Moving through items is as simple as tapping an arrow on the widget.
The Google+ app is available for free in the Google Play Store.