I've been having a lot of fun with the Afterlight app on my phone since my Nikon's SD card broke. I love the instant film frames, and how many editing tools the app includes. It really takes phone pictures to a new level.
P.S: I've also been having a lot of fun with the new video app, Spark. What I love most about it is that you can add music from your iTunes library to your videos, which opens up all kinds of creative doors!