Nokia has announced that it is suing Apple for patent infringement, over iPhone's use of GSM, UMTS and wireless LAN technology.
Now that's what we call gloves off.
Nokia says ten of its patents have been infringed, covering wireless data, speech coding, security and encryption. It further claims that every single iPhone model has infringed them.
"The basic principle in the mobile industry is that those companies who contribute in technology development to establish standards create intellectual property, which others then need to compensate for," says Nokia's VP of legal & intellectual property Ilkka Rahnasto in a statement.
"Apple is also expected to follow this principle. By refusing to agree appropriate terms for Nokia's intellectual property, Apple is attempting to get a free ride on the back of Nokia's innovation."
Apple has yet to respond to the lawsuit - we're assuming a statement will emerge later tonight. The complaint has been filed in the Federal District Court in Delaware.