A mega-uber value reader points me to this post in The Unwired from last Friday, in which author Arne asserts that Vodafone Germany is blocking VoIP on its 3G datacards. If anyone out there has any corroboration of this claim, please let me know.
UPDATE: More on this issue here.
UPDATE 2: It turns out that Dean from VoIPUser discovered some interesting and questionable things about Vodafone UK's 3G datacards a few months ago, i.e., it appears that the company has joined the exalted ranks of reactionary Third World telcos in blocking access to the Skype.com URL. Any similar experiences to report out there?