Forbes contributors publish independent expert analyses and insights. Tim Bajarin covers the tech industry’s impact on PC and CE markets. Apple's latest keynote this week wasn't just another iPhone ...

Once you’ve activated your iPhone with your carrier, it should continue to work on the cellular network without any problems as long as you’re within range of a tower. Nevertheless, the vagaries of ...

Another hint has surfaced that Apple is preparing to eliminate the physical SIM card tray from iPhones in more countries this year. In particular, a source familiar with the matter has informed ...

Some owners of Apple's new iPhone 4S have been hit with SIM card error messages, even if they are connected to a CDMA carrier that does not use SIM cards. One reader ...