Wow, that's pretty cool! I'm just wondering though; since Bitcoin's value is always changing (as are a lot of cryptocurrencies), how or what would they use to track and convert the current value of Bitcoin into Ruble equivalent to the cost of BK items. I have not used cryptocurrency to pay for any goods yet so I'm just really curious of the whole transaction, especially since I wouldn't want to accidentally pay more than the actual cost of the good just based on the timing of the purchase. Anyone have any insight?