Even in the face of a global economic meltdown, wireless technology has been an unqualified success. Energy-efficient microprocessors power mobile devices that let people share words, sounds, and images--and tap into a world of entertainment--almost anywhere. But the success of these smart phones, e-readers, and tablets challenges the telecommunications companies that must provide connectivity for a device long after the store receipt for it has been lost.
- By Stephen Cass
There are a lot of ways to get your data fix while out and about, and even more are on the way. Because radio waves interact with the physical environment to a vastly greater degree than signals isolated within a copper or fiber-optic cable, which technology works best for you often depends on where you are.