I think that everyone in this thread should take a look at bitshares-x (http://bitshares-x.info).
Basically is a distributed bank were you can hold your deposits in any currency (first iteration will have bitUSD, bitGold and bitBTC).
These are market-pegged assets or collateralized network issued IOUs .. If you have 1 bitUSD it will always be worth 1 USD worth of BTSX (the crypto that this network use).
The pegging is being done with a prediction market running in the blockchain that have 10 second confirmation time using DPOS (delegated proof of stake).
BTW: This bank makes money with transactions fees, inactivity fees, margin calls fees and this revenue goes directly to the shareholders. Just owning the underlying crypto BTSX (the one that bitUSD is backed) you are a shareholder.
For me is the most innovative thing ive seen since bitcoin.

My 2cts