I was looking at my screen earlier and noticing that eBay was down an awfully long way, and I wondered why. The market seems to be worried about the Google payment solution, but I guess this won't help either. Three highly critical vulnerabilities, one of which is a revival of this old nugget, and would seem to be some negative publicity for "pay-per-call ROI". The second seems to be negative for the online presence angle, and the third, most worryingly, relates to an error in "the handling of certain unspecified Skype client network traffic," which can allow exploitation to shut down the client.
UPDATE: It's not just Secunia which is concerned. The French Ministry for Higher Education and Research has banned Skype in all universities and research facilities. Mon dieu!