Tumblr for iOS got a huge upgrade and redesign recently. One of its best quiet features is a new take on the traditional iOS photo picking process. Instead of a modal dialog and having to pick between existing photos or shooting a new one, you go straight to this sheet that combines both. The most recent photos are at the top, while a live camera thumbnail makes it easy to shoot a new one.
Thanks to Matthew Panzarino for the GIF.

Tumblr iOS 7 photo post live camera