Hate to nitpick, but there is a small typing error in the OP :
Digital Geocaching Implementation: An online web interface where geocoins can be dragged and dropped onto a map. When a different user visits that location (coordinate), they receive the geocoins.
Geodashing is an outdoor sport in which teams of players use GPS receivers to find geopoints around the world. The objective is to visit as many geopoints as possible and receive geocoins for it. There are quite a few fun ideas surrounding this initiative.
Although I admit, geodashing sounds cool
