BARCELONA, Spain–Nokia has just thrown the curtains open on its new additions to the Windows …

Visa’s new partnership with Samsung to embed its PayWave technology directly into Samsung devices could help kick-start NFC-enabled payments around the world. But U.S. wireless subscribers may be left out of the frenzy. Bill Gadja, head of mobile for Visa, makes a payment with his Galaxy S III at the Olympics. Visa Samsung and Visa announced the partnership, which is …

BARCELONA, Spain–Mobile network operators traditionally use Mobile World Congress to call for lower taxes and more wireless spectrum. This year, a new word has entered the wish list: harmonization. The mobile industry today must deal with a hodgepodge of electromagnetic frequencies that differ from carrier to carrier and country to country. Franco Bernabe, chief executive of Telecom Italia, wants to …