Apple has sues Motorola Mobility to stop Motorola from asserting patent cliams against Apple in Germany. Motorola is one of the essential patent holder for 3G standards –  GSM, GPRS , UMTS etc. Device manufacturers generally cross-license their patents. Motoroal calims that it offered Apple the license to build 3G devices, but Apple didn;t take it.Apple argumet is that the terms of Motorola’s licensing were not fair.