A combination of file photos shows Bertrand Serlet, senior vice president of OSX software at Apple Inc, (L) and Craig Federighi, vice president of Mac OS at Apple Inc (R) speaking at the Apple Inc's Worldwide Developers Conference in San Francisco on June 8, 2009. REUTERS/Robert Galbraith/FilesApple said top software engineer Bertrand Serlet will leave the Mac computer maker after more than a decade spent developing its signature operating system, Mac OS X. Craig Federighi, currently the vice president of Mac Software Engineering, will take over from Serlet and report to CEO Steve Jobs, Apple said in a statement.

Yahoo refreshed its Internet search service, showcasing information from movie listings to weather forecasts as queries are entered. The Internet portal said that its Search Direct service will be available in the U.S. today on its main search Web page, and will gradually expand to the other parts of Yahoo, including the home page.

Nokia said it won’t begin talks on deep job cuts until the end of April. Analysts said the relatively long gap before talks kick-off could be because the final deal with Microsoft is yet to be signed, while Nokia might also want to delay any announcement on cuts until after Finland’s general elections on April 17.

Wide adoption of mobile wallets is being slowed by a behind-the-scenes battle among cellphone carriers, banks, credit card issuers, payment networks and tech companies, writes NYT’s Tara Siegel Bernard and Claire Cain Miller. The stakes are enormous because small, hidden fees that are generated every time consumers swipe their cards add up to tens of billions of dollars annually in the U.S. alone, they add.

Ericsson CEO Hans Vestberg sang the virtues of interconnectivity at the CTIA Wireless conference, predicting that 50 billion devices connected to wireless network by 2020 will make it easier to drastically reduce carbon emissions and lessen environmental impact, with the biggest opportunity to make a difference laying in placing all those devices on a smart grid, writes VentureBeat’s Matthew Lynley.