Depends if it becomes 'the way to pay'. If it has so much advantages to use it over other currencies, everybody would want to use it.
Then I would say yes.
Technically yes, this is such an ingenious system.
But the drawback of its distributed unregulated nature is that you hardly can fix prices on goods with it since the value of the goods may be doubled or halved in a matter of days which seems to me as highly impractical for shopping (appart from some "geek" stores and underground economy).
So to be the "way to pay" it has first to have a value that is somewhat connected to the real lworld IMO.
I am pretty sure something will come out from the cryptocurrency world that will be mainstream and usable as the way to pay, but again, as is, this is to me too much on the speculating side.