When I released an exercise-tracking app for the iPhone I got contacted by a zookeeper who wanted to adapt it to manage animal's feeding schedules. I didn't ta

When I released an exercise-tracking app for the iPhone I got contacted by a zookeeper who wanted to adapt it to manage animal's feeding schedules. I didn't take him up on it, but you never know what under-served niches are lurking at the fringes of the market.