Because they can do things like run apps, check e-mail, and surf the web, the average smartphone uses 35 times more bandwidth than a regular cell phone -- and each new generation of smartphones is proving to be even more "data hungry" that the last.
For instance, the iPhone 4S uses TWICE as much data as the iPhone 4... and THREE TIMES as much as the iPhone 3G (and according to some analysts, the iPhone 5 doubles your data usage yet again!).
As a result, carriers like AT&T have seen the traffic on their networks soar 20,000% over just the past five years.
And this surge in cellular traffic has led to more dropped calls... more frequent connectivity problems... longer wait times... and slower download speeds.