Give your favorite photos album a spot on your iPhone's home screen. Pick an album, a Shared Album, or all your photos, and Locket helps you revisit those memories. You can filter, shuffle, view them on a map, or view photos taken on-this-day-in-history.
Locket Photos
Castro Podcasts
This is a great app, and supports an important cause.
Pros:Gives focus to my vast photo library, and smart tools to get the best out of it.
Cons:Needs to implement some of those features I saw in beta ;)