As the global wireless industry convenes today for its biggest event of the year, the 3GSM World Congress 2007 in Barcelona, Spain, carriers participating in the event face a major challenge : how to maintain revenue growth amid a dramatic slowdown in new handset subscribers. At the 3GSM event, manufacturers are expected to show their latest products, ranging from high-end music-enabled wireless handsets and smart phones that are designed to appeal to sophisticated users in developed regions, to Ultra Low-Cost Handsets (ULCHs) that are targeted at low-income users in the third world.

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