Boot up: Chinese hackers, Lumia buildup, life at Tumblr and more

Plus fast charging for batteries, tax row grows, why solar costs aren't falling, Dropbox v Google Drive v Skydrive, and moreA burst of 9 links for you to chew over, as picked by the Technology teamChinese hackers who breached Google gained access to sensitive data, US officials say >> The Washington PostChinese hackers who breached Google's servers several years ago gained access to a se

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