Here's a fun story about how an iPhone 4 was used to catch a pesky doorbell ditcher.
James, a UK iOS developer, was being harassed by a doorbell ditcher every morning for a week and wanted to catch the culprit in the act. When he realized that standing at the door all morning looking out his peephole was impractical, he noticed that his iPhone 4 could do it for him. So James grabbed some blue tac, stuck his iPhone to the door, and waited nearby while enjoying his morning coffee with his girlfriend. When he saw the doorbell ditcher arrive, he snapped a photo. Turns out it was the neighbor kid being a prankster on his way to school every day.
After grabbing the pic and quickly opening the door with a loud "HELLOOO!" and watching the poor rascal's skeleton leap out of his body in shock, we were able to show his mother the picture and peace was restored.
Such a great story! Anyone else use their iPhone in an unconventional way?