Motorola will be going against the iPhone making company in court for using some of their technology standards and patent infringing cases.The case revolves around the wireless communication technologies, like WCDMA (3G), GPRS, the IE802.11 and antenna design, and other smartphone technologies like wireless email, software application management, proximity sensing, etc.
More details about this case, on the link below, and other case fought by other companies like nokia, google, oracle, nexus one, etc.
Link: Motorola Sues Apple (patent and copyright); Freelance