M-PESA, the extremely popular mobile-banking product offered by mobile carrier Safaricom in Kenya, is being audited by the Central Bank of Kenya.  In December, a cartel of local banks attacked M-PESA as a “Ponzi” scheme and asked the government to investigate.  See the story in allAfrica.com.

M-PESA, launched by Safaricom in 2007 in conjunction with Vodafone, has gotten the attention of bankers because of its quick growth. M-PESA now has 5 million users and 5,000 outlets–compared to 3 million with bank accounts at 750 banks.

Because M-PESA is primarily aimed at the “unbanked” population, the limit on a single transfer is under $500.

Safaricom overall counts 12 million users.