Dow Jones is revamping its enterprise media division with a focus on web-based applications, as the newswire operator seeks to become less dependent on the data terminal business now dominated by Bloomberg and Thomson Reuters. Since Rupert Murdoch’s NewsCorp bought the company for $5.6bn in 2007, the transformation of its flagship Wall Street Journal newspaper has dominated attention. Yet Dow Jones’ enterprise division has continued to generate more than 60 per cent of operating profits, while plotting a new strategy amid growing challenges to its traditional businesses.

AT&T announced Wednesday plans to double the speed of its wireless broadband network by 2011. The move to HSPA technology, and eventually LTE networks, will begin later this year. The nation’s second largest carrier also announced that the move to HSPA will allow it to begin testing its LTE technology for an initial deployment in 2011. LTE (Long-Term Evolution), which Verizon has also adopted, is a 4G technology that promises peak download speeds of at least 50Mbps. The upgrade to HSPA is one of a series of initiatives that AT&T unveiled this week.