Meh. While Bitcoin is technically perfect for such an application, being perfectly nation-neutral as it is, at present it's far too nascent. There are still around 15 million bitcoins to be issued. The market has been going through wild fluctuations. While I would love to see it adopted as an international monetary standard, the IMF's SDRs are more likely at this point. They have already been proposed and are backed by a rather powerful international organization. I would hate to see this happen, given the IMF's usurious track record, but they do have the advantage of being first to the party.