  Almost every portable device from Apple uses a proprietary
30-pin connector that provides power, audio, video and syncing
capabilities. While it provides great functionality, it means
that you have a unique cable just for Apple devices. The large
number of proprietary connectors have led to there being
approximately 30 different chargers for phones sold in
Europe. Europe has been paying much closer attention to power
usage in electronic devices, and chargers in particular. If a
household has seven devices with seven different types of
chargers, they likely will keep seven chargers plugged in at all
times using electricity. If a household can charge every device
with one type of charger, they may only have one or two in use.
Manufacturers can also concentrate on making smart chargers,
which use less energy, in only one style.  Because Apple loves
consistency, whatever change they make to the iPhone for the
European market will likely also appear in the U.S. However, the
question remains, how would Apple do i