Walt Mossberg and Katie Boehret were at the GSMA Mobile World Congress in Barcelona this week, and sent back this report on some of the highlights of the show.

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Suppose you own a Dell computer, and you decide to replace it with a Sony. You don’t have to get the permission of your Internet service provider to do so, or even tell the provider about it. You can just pack up the old machine and set up the new one. Now, suppose your new computer came with a particular Web browser or online music service, but you’d prefer a different one. You can just download and install the new software, and uninstall the old one. You can sign up for a new music service and cancel the old one. And, once again, you don’t need to even notify your Internet provider, let alone seek its permission.

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Over the years, it has been smart business strategy in the computer and consumer electronics industries to specialize in either hardware or software. But that’s changing.
Microsoft created one of the greatest business successes in history by fiercely sticking to software, dabbling only in minor hardware products, such as mice and keyboards, which were designed [...]

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One of the big tech news stories of the month was Apple’s announcement that it was delaying the public release of the new Leopard version of its Mac OS X operating system from June to October. The company said the delay was caused by the need to divert engineering talent from Leopard to Apple’s other [...]

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