Virtual Geocache will be a new game when cloud lists are available or I write a list engine. Here's how it works: 1) You start in a place with several boxes around you. You collect stuff from the first box, which includes a key for the second box. You can ideally collect everything. 2) You explore a virtual world, collecting items from 'geocaches' that others have left behind in the cloud data. 3) Then, you can use these items to access more places. I will put a 'report' button on each geocache in case it contains anything inappropriate. 4) If you collect the correct keys, you can get into trains, planes, etc. and go further. It's up to the players to add stuff to the game.
This is very optimistic. I know that. So please be aware, this won't happen very quick. If you like the idea, please love / comment on the project.