If I buy 10 Nubit for $10 now, do YOU promise that I will be able to sell them for $10 in December 2015? How much money has the exchange to buy back the Nubits from the users? What happens if the exchange gets hacked and some of the money stolen, will the price of the Nubits continue to be the same?
NuBits is as stable as the USD. 1 NuBit = 1 USD, always, meaning NuBits are pegged to USD (Though there is discussion of pegging it to a different currency one day if needed).
People who don't live in the U.S can still us NuBits, just like people who don't live in Europe, can still use Euro. NuBits just acts as a way to digitally send money to someone using a currency that is pegged to the dollar.
If you have any more questions, you can ask them at the forums, which can be found at: http://discuss.nubits.com
Cool to see this on HN. If anyone wants to learn more we have a really great community at discuss.nubits.com if you prefer the reddit look join us on /r/nubits
I live in Argentina and we had for a few years the "Convertibility" 1 Peso = 1 Dollar. Until it disappear. http://en.wikipedia.org/wiki/Argentine_Currency_Board