Skype has apparently been fixed, after being down and out since last week if I recall correctly. Of more interest to me, at least, was the cause of the crash - Microsoft and its notorious Patch Tuesday.
According to The Register: "Skype has blamed last week's prolonged outage on the effects of Microsoft's Patch Tuesday. The latest security update from Microsoft required a system reboot. The effect of so many machines rebooting and subsequently trying to log onto the Skype VoIP network triggered system instability and a prolonged outage of almost two days starting on Thursday1. Services have now been restored."
Full story, for Lun and others who've been suffering from full-scale Skype withdrawal, can be found here: http://www.theregister.co.uk/2007/08/20/skype_outage_post-mortem/