Nokia takes on iPhone in legal fight

Nokia, the world's biggest mobile-phone maker, on Thursday launched a legal challenge against alleged intellectual property abuse by Apple, opening a new front in its battle against a US rival that is transforming the industry. A lawsuit filed in a US federal court in Delaware accused Apple of infringing 10 Nokia patents in all 30m of its flagship iPhones sold since the US company entered the mobile market in 2007. The move sets the stage for a court battle between the industry leader and its fastest-growing challenger over one of the hottest products in consumer technology.