danomac writes "Apple is testing out new chip suppliers, trying to find a supplier other than Samsung. Apple is currently suing Android phone manufacturers, and Samsung is included in the lawsuit. 'Apple faces several hurdles should it want to make a switch to TSMC, including patents and chip design issues as well as a push by Samsung to retain the business. ... Analysts and other sources had previously said TSMC, the world's largest contract chip maker, was set to become a supplier of a next-generation processor chip to Apple, likely starting next year. However the chip may not be called the A6, as some reports have indicated, the sources said. TSMC is an obvious candidate to win processor business from Apple as it has budgeted $7.8 billion this year to update technology and add capacity. It also has experience with the architecture of British chip designer ARM Holdings Plc, widely used by Apple to make power-efficient mobile chips."