Kevin Stoley left a tricorder on the ice plant Hoth. Only it's not a tricorder, it's his dad's iPad 2. And it's not Hoth, it's the ground of the church.
Find Kevin Stoley's dad's iPad near the church and return it to him.
Talk to Kevin at his house to receive the quest. Then go to the church, where the iPad can be found behind the third tree on the right side of the church. Pick it up and return it to Kevin. He friends you and gives you a Missile of Slowing as a reward.