The BBC is taking a break from 3D, with the 50th anniversary episode of “Doctor …

The release of Jelly Bean has improved the functionality of Android tablets toward a more user-friendly, productive, and fast-performing experience. The new features in Android 4.2 range from interesting to useful, but all are meant to enhance the functionality of your device. The OS includes a new interface for smoother navigating, faster access to notifications and settings, a better camera …

Until now, smartphones with quad-core processors used to be just a twinkle in the eye of wistful Android addicts and gadget gurus. Either that or they remained exotic pieces of futuristic hardware reserved for foreigners. Quad-core handsets are now starting to arrive in force. The question is: which device packs the biggest CPU wallop? This chart lays it all out …