iPhone 4G - Sprint Overdrive advertising campaign

Here’s an Sprint’s advertising campaign showing off their 4G speeds “Sprint Overdrive can connect an iPhone to the Sprint 4G network to give it the advantages of 4G without switching carriers”:

Here’s an Sprint’s advertising campaign showing off their 4G speeds “Sprint Overdrive can connect an iPhone to the Sprint 4G network to give it the advantages of 4G without switching carriers”: