If your mobile photography is running out of inspiration, you might want to take a look at Mission: Pic, a half game, half social network iPhone app that adds a layer of fun to your iPhone photography, while fueling your creativity in the process.
Every day, a new "mission" or assignment is revealed inside the app. The goal is to take a photo with your iPhone based on that assignment and share it with your community of friends, then people vote on the best shots in a Tinder-like fashion, and the results are showed on a leaderboard.