The latest iOS update from Apple reduces the location cache, eliminates location backup with iTunes and allows easy removal. Now it's time for Google to step up and say it will do the same thing for Android.
In
an unusual announcement on May 5, Apple announced that it was issuing an
update
to iOS that will reduce the information kept in the location cache on
iPhones and iPads and that it will eliminate the backup of the information when
the device is synced with iTunes. The company also said that turning off
location services will erase the cache.
In
addition to issuing iOS 4.3.3, Apple also issued a candid discussion of what
the location cache does, why Apple uses it, and what information is gathered.
The Q&A
said that the location information is actually from a crowd-sourced
location database, and what it's storing are the locations of cell towers and
WiFi access points.
This
allows the device to tell you its location very quickly, and it has the
advantage of working indoors, which GPS generally cannot. In the Q&A, Apple
said that it never tracked the position of its users with iPhones or iPads, and
that location data was used anonymously to build the database, subsets of which
were provided to users for location services.
The
company also said that the retention of
huge quantities of location data was a bug, and the new version of iOS will
reduce the retention time down to a week. The new version of iOS also prevents
the iPhone or iPad from gathering location information when location services
are turned off.
Apple's
announcement is good, if not unexpected, news. It was hard to imagine what use
Apple might have for a year's worth of location data stored on a phone and it
was harder to imagine what might be done with it on a computer. The location
database that Apple keeps, as long as it's anonymous, provides a convenience
for users, and of course it allows targeted information that may be advertising
or simply a note that the next burger joint is two blocks ahead.
I
should also add that I was having trouble imagining why Apple might have wanted
to know the location of every iPhone in real time. It seemed that the quantity
of data involved would overwhelm any tracking or analysis the company might be
doing. It was hard to see what conceivable benefit the
company would gain from having this information.