Qipit mobile image API

They suggest you could build a document scanning, or whiteboard capturing, or barcode reading application by submitting images into the API, and then using the returned result.

Why not use this as a a method to create a mobile treasure-hunting game?

Use the API to help verify whether or not you found the treasure, or if you just picked up someone’s garbage from the street? First finder gets maximum points, subsequent finders get lower points, and the found and still-to-be-found objects become overlaid on a real, or imagined, map.

This is a 2.0-style API, using REST, with sample code, tiered pricing and they are looking for even more developers.