But this is a deathblow. How will businesses keep track of what a coin was worth when they exchanged a good or service for said bitcoin? This Bloomberg article puts it perfectly
Any company doing international sales is already doing the same thing when it comes to getting paid in Euros. For most merchants which don't hold BTC there is never any gain. For merchants that do, and can't do it themselves I am sure processors like bitpay will provide services to track all that and give them a report at the end of the year.