iOS: When you take a bunch of pictures with friends and family, the pictures usually end up scattered about on everyone's phones. Flock is a way to collect all those pictures into one shared album automatically so you can keep your event photos in one handy place.
Flock is easy to set up. Once you login with your Facebook credentials, the app finds your friends who are using Flock. When you're all in the same location together taking pictures, Flock automatically creates an album and shares all the pictures with everyone in the same location.
That said, you still have control over which pictures of yours get shared, but for the most part it's an automatic process that brings together a group of pictures in one place. If you're looking for a means to keep track of event photos, or you have a large family that seems to snap pictures all the time, Flock is worth a look. It's a free download in the iTunes App Store.
Flock [iTunes App Store]