So what caused current rise in price?
1- M-Pesa has recently changed the base code to include decimal places (crypto currency) and text advertising (cryptr.ch)
https://github.com/FrontlineSMS-Credit/payment-service-safaricom-mpesa-ke2- Zetacoin Team contacted @jacassano Senior writer @FastCompany (1 million users) to cover the story and confirm the whole story without breaking NDA agreements with the third party (aka M-Pesa). Why would you do that if it was not true?
3- Insider info that I can't relay, but if the reasons above are not enough...well, none are.