Nokia announced that it has today filed a complaint against Apple with the Federal District Court in Delaware, alleging that Apple's iPhone infringes Nokia patents for GSM, UMTS and wireless LAN (WLAN) standards.
More info from today's announcement:
The ten patents in suit relate to technologies fundamental to making devices which are compatible with one or more of the GSM, UMTS (3G WCDMA) and wireless LAN standards. The patents cover wireless data, speech coding, security and encryption and are infringed by all Apple iPhone models shipped since the iPhone was introduced in 2007.