Android likely falls into this camp as well, as mobilephone manufacturers and cellular carriers would not support a mobile operating system with very narrow appeal.
Their monthly fees remain only a fraction of cellular-phone charges, though the upwardly mobile will probably trade up to a handset as soon as they can afford to.
The company's Boost Mobile division, which markets prepaid cellularphone service to young consumers using sports- and music-oriented marketing, has seen excellent growth this year.