I have a hockey radio app so I can listen to any game when I'm out and about..
I like my Instagram app for picture tinting and my Yelp app for reviews and nearby recommendations. Got a flashlight app too to use whenever I drop something in a dark bar.
Spotify is a good music app.
Of course Instagram for all your hipster pic needs.
WWF is a cool game.
If your bank offers an app that will be handy.
Gamefly app if you need it.
Netflix app if you wanna stream stuff.
Rhapsody.. or pandora.
Words with friends
Hanging with friends
Watch ESPN
Temple Run
Facebook
Twitter
Nike Boom (for my workouts)
Flashlight app
Guitar Tabs
ScoreCenter