BitInstant Continues Bitcoin Paycard Plan 152
judgecorp writes "Virtual currency exchange BitInstant says its BitCoin credit card is still on track. even though Mastercard denied any involvement with the plans yesterday. BitInstant says it is applying through a third party bank which will broker a Mastercard application. BitInstant is still taking signups for the card. Oh, one clarification: the card will not be anonymous."
Re:Exchange rates? (Score:4, Informative)
Like any other tradeable thing: on an exchange. If you don't think the exchange rate BitInstant gave you is fair, it's easy to go to a site like BitcoinCharts [bitcoincharts.com] and look at the spot prices at the time on any of the exchanges in existence for the currency you were converting too. After all, the back-end of BitInstant is just a computer program that automatically submits sell orders as required to meet their float requirements. Buyers then buy the Bitcoins, giving BitInstant fiat currency in return, which they then send to the bank handling the debit card backend via wire transfer.
The key thing from BitInstant's point of view is to have solid reliable backend software that submits orders fast enough, and statistically understands the volatility well enough, to figure out what instantaneous exchange rate they can make a profit on while still giving a good enough rate that their users don't feel ripped off. This is easy if the price of Bitcoins is rising, but if it's dropping they could easily be in a situation where they give you too much fiat currency for too little Bitcoins. Part of the issue too is that spreads between buy's and asks on Bitcoin exchanges tend to be much larger than you'd find in government-issues currency exchanges, simply because the market is smaller. They're looking at spreads in the region of one percent, rather than hundredths of a percent.
Ultimately though the process is no different from what your bank does if you use a USD denominated debit card in Europe.
Re:I'm curious... (Score:4, Informative)
AFAIK it's used for connectors a lot because it doesn't corrode.