AND now binance card. Of course, this will spur mainstream adoption.
That's exactly right! They will do the conversions internally. So you don't have to worry whether you don't have fiat on hand and only BNB or other crypto in your wallet. So even if the merchant is only accepting fiat, there's nothing to worry about. As long as you have their binance card, they will take charge of the conversion to fiat.
Moreover, specific details regarding fees, charges, process, updates and etc., have not yet announced by the exchange. So, we will wait for that maybe next week.