A screenshot of an iOS 8 homescreen with the new Healthbook, Preview and TextEdit icons was posted to China's Weibo microblog and spotted by 9to5mac. The source of the screenshot cannot be verified, but insiders close to 9to5 claim the icons represented in the image are legitimate. Healthbook is Apple's rumored fitness app for iOS 8 and its icon revealed in the screenshot loosely matches earlier descriptions. It may connect to the iWatch and track vital health and fitness parameters suc