Ugliness ensues, and the internets get weakened.
You should read the whole Wired article, honestly. The money quote from Mr. Schneier:
Oddly enough, Storm isn’t doing much, so far, except gathering strength. Aside from continuing to infect other Windows machines and attacking particular sites that are attacking it, Storm has only been implicated in some pump-and-dump stock scams. There are rumors that Storm is leased out to other criminal groups. Other than that, nothing.
Personally, I’m worried about what Storm’s creators are planning for Phase II.
Be scared, but also be aware that breaking the internet for one country breaks it for all developed countries. The wonders of interconnectedness!