According to The Telecom News Bulletin, Zong has launched the "Keep Phone On" (KPO) reward program. ZONG subscribers will automatically win prizes just for keeping their phone on. With KPO, ZONG rewards its customers for staying with ZONG. The longer they stay with ZONG, the more rewards and prizes they receive.

Used by the poor, reporters, their sources, whistleblowers, abused spouses and anyone needing an untraceable phone number, they've also become the device du jour of drug dealers and terrorists who want to avoid the eyes and ears of law enforcement. While such phones pose problems for police agencies -- they can't be wiretapped as can traditional cell phones and land lines -- their purposes are far-reaching.  Article here