Use Xnote to hide virtual messages outdoors. Hide a love note or a fun photo. Get kids off the sofa and out the door by sending them on a scavenger hunt close to home or school. A virtual take on geocaching. Fun, exciting and educational!
Need to check this out before the next road trip.iSpy by SplitP is a scavenger hunt type app - you earn points by using the camera in your cell phone to create and solve "missions" while traveling all over your home-town or vacation destination