A quick look at Nokia's actual complaint (PDF) reveals an impressively tight argument: Nokia says that it committed to licensing several of its patents under "fair, reasonable, and non-discriminatory" terms (or FRAND terms) during the development of the GSM, UMTS, and WiFi standards because those patents are essential to each standard's operation, and since the iPhone uses all three standards, Apple should pay to license the patents. Open and shut, at least if you believe Nokia.