iPhone, Smart Phone, Phone: Big Difference in Behavior

It's starting to become clear that putting smart phones in the hands of users will cause their behaviors to change in ways that are helpful if a service provider cares about new services.

It also is clear that new behaviors are encouraged when users have an easy way to navigate and don't have to worry about the charges.

That isn't necessarily to say most users require truly "unlimited" data plans. Plans that allow them to make use of Web applications and features without worrying about the cost are what is important.