Delivering the day's top news, highlights and the best of NetworkWorld.com.

Sprint Nextel is buying Virgin Mobile USA, a subsidiary of the UK-based entertainment and communications giant that has more than 5 million prepaid wireless subscribers in the United States. Also, Microsoft officially opened its Windows Marketplace for Mobile application store to software developers on Monday as the software maker moves to catch up to the success of Apple's iPhone App Store. (5:57)
Network World's Twisted Pair Keith and co-host Matt Hamblen talk about whether we'll ever trust the cloud, how people will use the iPad, and why older people might not want to retire any time soon....
Network World's Newsmaker of the Week Dave Hansen, corporate senior vice president and general manager of the Security and Compliance business unit at CA will host a panel at RSA discussing cloud security and...
Network World Panorama Enterprises are quickly going mobile - are you ready for the explosion of devices, platforms, applications and users? Keith Shaw talks with BoxTone CEO Alan Snyder...
The Open Network Joe 'Zonker' Brockmeier, speaks with Chris Blizzard, director of Developer Relations at Mozilla. Chris gives a sneak peek at what's to come in the next releases...