While Apple never creates apps for other mobile systems or devices, its major mobile-platform foes — Google, Amazon and Microsoft — make many of their apps available for Apple devices.
Walt reviews a new $150 digital wristwatch called Pebble that connects to an iPhone or Android phone wirelessly and displays notifications and previews of calls, texts, and emails.
Microsoft’s Surface Pro tablet has some of the attributes of a laptop and is capable of running full-featured Windows 8, though at a price — in dollars and pounds, says Walt Mossberg.