From its main tab of the application you can easily see where your friends are, what they are doing, what they are seeing, what they have close, ect. You will have a 'Feed' that will be full of all this information so you can have access to it in a very comfortable way.
Also from the map view you will be able to have a good idea where your friends are and how far away you are from them.
Banjo is an application that is very interesting for any user that uses various social networking sites. So this way you can have them all connected in one, so you do not have to constantly be switching from one to the other.