Users
 - Search

Locations
 - On list
   - Add parameters for filtering (doing a search)
 - Add/Edit/Delete
   - Requires a setting (maybe in CD) and appropriate permission
   

Friends
 - On add verify fuid
 - On del verify fuid
 ** Abstraction so that friends can be from facebook **

Checkins
 - BYLOCATION 
   - restrict to friends (optional)
 - Tag friends.


Leaderboard
