The point the article was going for (and that I think it made successfully) is that the concept/language has more possibilities than have been explored in the two years its been publicly available. So far most third-party apps have done little more with the ideas than copy how Microsoft has used them so far, that doesn't mean there's no possibilities to do more.

It reminds me a bit of my first Powerbook running OS X and the slew of poorly-Aquified 3rd party apps that didn't take real advantages of the differences in the OS X interface, but just slapped on the pinstripes and gumdrops.