VoiceCon: IP communications drives business transformation at Cisco, CEO saysCisco CEO John Chambers used is keynote at the VoiceCon show in Orlando on Tuesday to explain the benefits his company sees in its own IP telephony and unified communications network, and urged his business customers to follow his company's lead - and quick. Get the full story.Plus: See complete VoiceCon coverage, updated dailyMicrosoft buys Apptimum to ease applications transfer to VistaPrepping for what it hopes will be a significant migration to Windows Vista, Microsoft on Tuesday acquired Apptimum, a company that develops software to ease the transfer of applications to new computers. Click here for more.Analysis: Industry awaits Verizon's response to AT&T\/BellSouth dealNow that AT&T has made public its long anticipated intention to acquire BellSouth, all eyes are on Verizon. How will its rival respond? Verizon has a history of countering strategic moves by SBC, the RBOC that acquired AT&T last year. Get the full analysis.Citibank cards pulled after network breachCitigroup is reissuing MasterCard credit and debit cards used in the U.K., Russia and Canada, saying they may have become compromised following an unspecified breach of its network. Click here for more.MIT researchers extend computer life without batteriesResearchers at the Massachusetts Institute of Technology have found a way to extend the power life of mobile computers. Click here for more.For news updated throughout the day, go to Network World's NetFlash news page.