Not sure if a universal ban on software patents is ideal, but this is certainly a step in the right direction. Rather think NZ has just set itself up as a potential software development mecca.
My point is if you are an investor or large corp where are you going to put your money? In the country that won't allow you to control your "IP" or the one that will?
Eh, it's still a comparative advantage, in macroeconomic terms. It isn't such a hypernarrow specialization that they'll be particularly vulnerable to market changes.