Tech Industry Catches Its Breath

For the moment, the tech industry's innovation engine is in idle. The annual Mobile World Congress -- traditionally a place to introduce products that blend computer and phone functions in novel ways -- has featured tweaks on existing designs. "It's like with evolution, where you have a mutation and then a great explosion of diversity," said Scott A. McGregor, the chief executive of Broadcom, which makes chips that go into a wide range of consumer electronics. "Then, you have a period where you see which creatures can survive the big change."