Our weekly news round-up: GPS systems to adjust for Australia's 7cm-a-year continental drift; Porsche's 'Mission E' electric sedan to take on Tesla's Model S; Effects of long-duration spaceflight on humans; Interstellar message in a bottle; Possible class actions against MS for Windows upgrade tactics; Indian hacker exposes Vine source code; SwiftKey's data leak; Space Station's internet for the solar system; Australia's first digital census; One billion iPhones sold.