IT's big flopsOur editors and columnists nominate their favorite failures chronicled - OK, hyped - in Network World over the past 20 years. Click here for the full list.Good idea, but...In this week's Cool Tools video, Keith looks at a couple products - Project-a-Phone and Soldius1 - that came to the Cool Tools Lab with a lot of promise, but didn't live up to expectations. Watch it now.Sprint lays out its wireless broadband network plansSprint Thursday announced that it is speeding up its broadband wireless network this year while expanding its geographic reach. Click here for details.IT worker disputes state government security breachA New Hampshire state IT employee who was placed on paid leave last month after an alleged security breach involving a government server is disputing the state\u2019s explanation of the incident. Click here for more.Q&A: Router manWilliam (Bill) Yeager is 66 and still gets peeved when someone trots out the Silicon Valley fable about how the founders of Cisco invented the router. He was the guy at Stanford University that made it happen. The history of Network World roughly parallels the commercialization of routing, so we tracked Yeager down for a glimpse into the scene back then. Click here for the full interview.The most prevalent wireless threatsNetworkWorld.com introduces its first Wireless Security column. Every other week, experts from Wireless Vulnerabilities and Exploits will answer questions on tough wireless security issues. Click here to see the first issue.For news updated throughout the day, go to Network World's NetFlash news page.