iHandy Level Free App
This is the iPhone app that you show your grandpa to explain how awesome the iPhone is. Then he runs around the house checking to see how level everything is. Then he proceeds to show it to anyone that will listen with an excitement that you've never quite seen out of him before. Then you get calls from him at 7am to come over to his house so he can show his buddy Dale this amazing "Level Phone". Then Dale drops it on the ground breaking the rear glass, and makes some smart ass comment about how they don't make levels like they used to.