Two European carriers are warning iPhone 4S users not to upgrade to iOS 6.1 until Apple fixes bugs - and IT departments are reporting problems too.
More bad news for Apple: Samsung's Galaxy S3 has become the world's best-selling smartphone, knocking the iPhone 4S down to second place.
For the first time since the launch of the iPhone 4S, it is not the #1 smartphone in America.
Apple's cut the price of the iPhone 4S, in an unusual move that's presumably designed to maintain sales ahead of the iPhone 5's launch later this year.
AT&T has nothing to say about what appears to be a big change coming to Facetime in the new version of Apple's iPhone operating system.
In an effort to rake in more data fees, AT&T may require iPhone users to access Facetime over mobile data.
Apple's voice recognition platform appears to hold muster.
The iPhone is now available through yet another mobile carrier.
Sprint's Virgin Mobile brand is to become the US' second carrier to offer the iPhone on a prepay basis - and it starts at just $30 per month.
If you have an iPhone 4S, go ahead and ask Siri what the best smartphone is.
Apple's powerful voice recognition platform is spreading its wings.
An incredibly 87% of people with an iPhone 4S say they use the personal voice-controlled assistant Siri.
When it comes to voice-activated technology, nothing seems more appropriate than in-car situations.
Apple's reported its highest ever quarterly revenue and earnings, largely thanks to the iPhone 4S, launched in October.
The recent high-profile launch of Cupertino's long-awaited iPhone 4S had a significant impact on the proportion of smartphone owners who chose to purchase an Apple handset.
Apple's suspended retail sales of the iPhone 4S in China, after its Beijing store was pelted with eggs by unhappy would-be customers.
The iPhone 4S will be available in a number of new countries and territories later this month.
The iPhone 4S is Apple's most popular model yet, according to a survey - and it's all because of Siri.
An Australian man has hacked Apple's Siri voice assistant to turn it into a home automation controller.
Here's something we don't get to say that often: AT&T has been ranked the best at something.