Microsoft has dropped its three-month-long pursuit of Yahoo after Yahoo refused its revised offer of $33 per share. The failed acquisition attempt takes Microsoft back to square one in its quest to boost its online business to better compete against Google.Related: Microsoft and Yahoo: What now? Tech-savvy delinquents are setting the Net aflame with boneheaded exploits that earn them the wrong kind of fame. Get the details on the latest generation of cyberschnooks in Stupid hacker tricks, part two: The folly of youth. Sun and the OpenSolaris community are launching the official first version of the open-source OpenSolaris operating system. Also arriving from Sun is the NetBeans 6.1 open source IDE and a pre-release version of NetBeans for PHP developers. Google has removed an open-source project that enables the proprietary CoreAVC high-definition video decoder to run in Linux after the codec’s developer complained that the project had engaged in “reverse engineering without permission.” The shortage of lithium-ion batteries that is currently hurting laptop shipments will likely ease in the third quarter, according to the head of Simplo Technology, the world’s largest independent notebook battery maker. Technology Industry