The D9 conference currently being held in California saw some tough questioning from hosts Walt Mossberg and Kara Swisher who put AT&T Mobility CEO Ralph de la Vega in the hot seat. Walt and Kara really took it to de la Vega and pushed him to answer questions regarding AT&T’s network quality and why they should be trusted with T-Mobile and therefore running the nations largest wireless network. We followed the live … [read full article]