No offense, but Bitcoin already did this.
This is just a digital solution to transmit existing currency.
A more apt comment would be that paypal (or any number of similar services) did this already.
In fact, though, none of these similar services have done anything close to this.
When you have 50% of the population using a digital payment solution for all of their money needs... then maybe you can make a comparison.
Also, M-Pesa was launched in 2007, Bitcoin in 2009. So the "already" is a bit imprecise, too.