Apple's iPad has finally arrived in the hands of eager customers, following several months of escalating anticipation. Announced just three years after the original iPhone, the new tablet has been described by Apple as "magical and revolutionary." Is the iPad capable of transforming the concept of mobile computing, or will it become yet another niche product that fails to take hold in the current marketplace? Our in-depth review explores how the device stacks up against Apple's promises and rampant speculation.