Given the names involved, many observers unsurprisingly expected whatever deal Skype and Verizon Wireless planned to announce at the Mobile World Congress in Barcelona to produce a major breakthrough for mobile VoIP. But when the announcement came, it turned out to be less than overwhelming. It involved an application that will allow mobile users to make Skype calls over the Verizon Wireless network using smart phones. The deal does little to alter Verizon's traditional cellular model. It doesn't transport VoIP over the 3G data network, and it won't be a major money-saver for users. The main change it brings is making Skype somewhat more convenient and accessible for Verizon customers.