Engadget (amongst many others) reports that Nokia is suing Apple because the iPhone infringes on 10 Nokia patents related to GSM, UTMS and WiFi. While the press release doesn't contain much detail, it does state that Apple didn't agree to 'appropriate terms for Nokia's intellectual property,' which sounds like there have been negotiations about those patents.
http://yro.slashdot.org/story/09/10/...ment-In-iPhone
