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This is the place where new LocaShares
are initiated. Joe wants to share his location
with Bob during this trip. He also wants to
share his current city with his mother
Alice. Both of these can be set up here.
From the system perspective, there are
many parameters associated with a location
share. In order to limit the number of these
settings that users have to deal with explicitly,
 in this design we use sharing types, which
are essentially templates of settings.
Joe can set up his two shares as Vacation
shares -- a vacation share defaults to all
the time and is not a radius share. The
choice that Joe is presented with is whether
he'd like to share just his exact location or
just his current city. For Bob he's going to
choose exact location, and for Alice he's
going to choose current city.
After the trip, Joe wants to set up a different
 LocaShare with Bob, where Bob can see
whenever Joe is in his neighborhood. This
is an In Your Neighborhood share.
These shares are based on a location-- this
way, Joe doesn't have to reveal to Bob
where he is all the time-- just when it's
relevant to him. The place should be
relevant, and so should the time -- Joe
chooses to share with Bob only when
he's in the neighborhood in the evening.
Out and About sharing is meant for sharing
whenever you're in one of several specific
places. For instance, Joe may want to let
his friends know what places he goes to
eat and how often he goes to them.

Recall that Joe is looking for
Bob, who isn't there to meet him.
From the home screen, Joe clicks
on People and then finds Bob.
By staying in the "now" tab, he
can see Bob's exact location on
a map.

Deals are offered based on proximity.
Joe is at the resort and is looking to
buy some ski gear. He sees that Rei
 and Walmart are offering deals. He
is more of an REI kind of guy, so he
explores that deal, and finds out that
Rei is willing to give him 3% off of
his purchase if he agrees to share
with them whenever he is at an
Rei location. He signs up by clicking
Sign Up.

Joe's mom Alice has access to Joe's city-location
 and wants to view it. She hits People from the
home screen and then selects Joe.
She clicks on the History tab to see a list of
places Joe has been.

After the ski trip, Joe wants to stop sending his location
 to Bob.  First he browses to the share by clicking on
Bob in his contacts. He sees the Vacation share,
and can click on it to view the details of the share.  
He can then delete it either directly from the
details view, or by returning to the listing screen
and selecting it from there.

By selecting My LocaDeals from the home screen,
 Joe can see the deals he's currently participating in.
Clicking each one displays details regarding that Deal.
They can be deleted either from the details view or
from the list.