Scaling is a hot topic in businesses, especially with startups that expect to become Slashdotted or Digged anytime soon. Google recently announced they would increase the speed at which their Gmail would gain storage capacity, mainly in response to Yahoo! and Microsoft recently upgrading and surpassing Google's storage offerings.
This article doesn't define scaling. It's clear enough from context, but it should be pointed out that price scaling and performance scaling are different. In fact, once you substitute "reduce $/GB over time" for "scale", the article becomes totally obvious. In other news, All Processors Should Follow Moore's Law (because if you don't, you'll go out of business).