This book on Objective-C, written by Aaron Hillegass, is based on Big Nerd Ranch’s Objective-C Bootcamp. Other books in this series include iOS Programming and Advanced Mac OS X Programming.

There is something about the iPhone 4S that sucks the power out of the battery at an accelerated rate. This article offers some tips to make a charge last longer. Or you can follow the advice given by some Apple “geniuses”.

If you’ve ever wondered why some ads show up for you and not your friend, Google is ready to offer some explanations. They’ll even let you block adds from specific firms.

Apple offers the Siri digital assistant. Android has Edwin, Iris, Vlingo, and Speaktoit Assistant to fill the same slot. This article reviews these four Android apps.

Android is popular but, with all the licensing problems, it may lose favor with vendors. Next on the list may be Ubuntu Linux. Canonical has been working toward this expansion with their Unity interface.

Prof. John Kubiatowicz seems to be the curious type. He’s determined that adding more books to your e-reader will add to the weight of the device. For instance, 4GB worth of books will add 0.000000000000000001g to its weight.

The iPhone 4S has Siri, the iPhone 4 doesn’t. Unless. Steve Troughton-Smith and Grant Paul have ported the application from a jailbroken iPhone 4S to and iPhone 4 and a newer iPod Touch.

With hundreds of millions of users on Facebook, it’s a fairly small percentage getting hacked. Facebook is providing some new tools to help you access your account if you get locked out.

Apple no longer dominates the market. Samsung led by a substantial margin in the last quarter and now holds almost 24 percent of the market.

Whether this particular phone ever makes it to production or not, the idea is intriguing. Flexible phones were just one of the prototype devices demonstrated at the Nokia World Conference in London.