genocide:
this is the way i understand it. they made a deal with the bondholders to clear their debt, but the bondholders get about a 15%? equity stake in the new company (they'd rather get this stake than get nothing). so without the debt and load of making huge interest payments every month, covad is pretty close to cash flow positive. i believe the current shareholders suffer from what's called dilution, but their shares are still worth something and they get to partiicipate in the new debt-free company.
current exodus shareholders are hoping for the same thing. although there might even be a buy out in exodus' case, but nobody knows right now, which is why it's trading at...damn $0.13.