A digital currency for Latin America that is very easy to use. This currency will be very secure and not have theft problems that Bitcoin currently faces. The currency will also have very fast verification times for transactions. The technology as it stands is re-useable and re skin-able for many other uses.
Another potential direction is involving crowd funding and digital shares that is a very easy spinoff from this tech. In a nutshell, imagine a new way for companies to be able to raise money. They go through a crowd funding phase:
and then after the investment round is complete, the company gets the funds, the crowd gets their appropriate *digital shares* and they will now be able to trade their shares on our private stock exchange. Imagine not being stuck in a private company till IPO, but being able to have liquidity for your shares so you can get out at any point and transfer digital ownership.