Apple appeared in a Shanghai court on Wednesday, accused by a Chinese firm of copying software used for the "Siri" personal assistant on its hugely popular iPhones.
Apple's iPhone gained ground in the US market over the holiday season and early 2013, outpacing Samsung and other smartphone makers using the Android operating system.
BlackBerry's new smartphone platform launched this week faces an uphill battle winning back corporate and government users who helped spawn the "crackberry" culture.
Apple shares slid about 10 percent Wednesday after the tech giant posted record profits and sales of its iPhones and iPads but offered a disappointing forecast for the coming months.
Concerns that the latest iPhone may not be a hit in China caused Apple shares on Friday to extend their slide from a record high price hit in September.
Just weeks after its momentous launch of the iPhone 5, Apple is back with what is expected to be another hot gadget -- a "mini" version of its market-leading iPad tablet.
Offering a new way to read the news on a mobile device, an app launched Monday delivers content in "flash card" segments in an effort to optimize new formats.
Apple apologized Friday for its glitch-ridden maps application in the new operating system used by the iPhone 5 and urged customers to use rival programs while improvements are made.
The new iPhone 5 broke records in its launch weekend with sales above five million, Apple said Monday, but the figures were below some forecasts and pressured the company's share price.
Melting bridges, misplaced landmarks, and major cities disappearing: Apple's glitch-ridden maps program released in its new mobile software has customers fuming and analysts puzzled.
Apple's new iPhone 5 may have been criticised for its glitch-ridden new maps program, but it may have inadvertently provided a diplomatic solution to China and Japan's ongoing row over disputed islands.
The new iPhone 5 is on its way to unprecedented commercial success, but the world's most iconic smartphone is facing tougher competition from rivals out-innovating Apple.
Apple's iPhone 5 hit stores in a festive global rollout Friday, with long queues of devotees undeterred by a lukewarm welcome from experts for the smartphone and complaints about its new mapping system.
Gadget lovers have flooded Apple with pre-orders and set up camp outside the company's real-world stores to get their hands on the new generation iPhone 5 set for release Friday.
Stocks in Apple's Asian component suppliers were mixed Thursday after the launch of the iPhone 5, with analysts citing uncertainty over its impact in the hugely competitive smartphone market.
The stage is set for Apple to unveil a new-generation iPhone on Wednesday as the culture-changing company once again lays claim to the heart of the Internet age lifestyle.