Categorization of Bitcoin is never ending discussion. It is a currency, commodity, property? This actually is a problem.
In one country BTC is currency in others commodity and some others are waiting...
Semantics and legal issues are the reasons why we don't have any serious bitcoin legislation in place.
In US bitcoin is classified both as currency (by U.S. Treasury ) and commodity (by Commodity Futures Trading Commission).
How simple people can be smart when even pros have no idea what bitcoin really is?
I think bitcoin is in early stage and more then how it is defined what matters is how it is used.It will be clear only after mass adoption whether people use it as commodity or as a currency