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Tech Review Sony has no plans to cut PlayStation 3 price (Reuters)   China city tightens Internet control after protest (Reuters)   Defective Xbox 360 consoles to cost Microsoft a billion dollars (AFP)   Xbox 360 repairs will cost Microsoft $1B (AP)   Linux official, Microsoft give thumbs-down to GPLv3 (InfoWorld)   Apple issues battery program for iPhone (AP)   U.K. company says it's close to unlocking iPhones (InfoWorld)   Microsoft expands in Canada amid U.S. visa crunch (Reuters)     More