The news is that CROS users will now have a native app to read and edit MS Office docs. Until now, CROS users would have to: download them, then upload them to Drive, then see a limited read-only version.
Since it's in NaCl you can count on the app being orders-of-magnitude faster than if written in some other technology.
Pixel is not part of the story, but it does add more readership to the article.
In summary, Chromebooks and Chromeboxes are getting more and more serious for low-end and high-end users at home, school, and work.