this is a black day for IP comms. Just imagine the huge economic cost if this were our sole communications backbone. For professional work I will have to rethink where I want to use Skype or promote Skype usage. My Skype is still not working after near to 24 hrs.
I hope that Skype will learn some lessons from this. I didn't get any warning from Skype, read it in an IT business news service to which I am subscribed. That looks petty unprepared and unprofessional.