THIS is the latest profile of a cellular operator subscriber: Naninda Berliana Pratidina, 19. There is no "loyalty," Naninda only cares about prices, pursuing cheap rates everywhere. In less than a year, the student at the School of Orthodontics, Padjadjaran University, Bandung, has changed phone numbers five times. From Simpati to Halo, to As, and then to Indosat's IM3.

The number didn't last long. Prior to returning to her current IM3, Naninda was