If you look at some of the dev's locations in your "Friend's Locations" panel you can see that when they are home they are no longer located at a specific street address but at "home".
When I see kevbob's listing for example it says "kevbob in kevbob's House" and when i click the link to kevbob's house I see this: bit.ly/xGJjBF
I think we are getting close!