Now in its third year, Apple's iPod Touch has evolved so many features and uses beyond media playback that we're not really sure what to call it anymore. Some flock to the Touch for its first-class mobile Web browser and e-mail support, while others see it primarily as a portable gaming device, and some still pick it up for good old-fashioned music and video playback. No matter how you choose to define the iPod Touch, Apple's third-generation version has arrived, flaunting 8GB, 32GB, and 64GB capacities priced respectively at $199, $299, and $399. Its hardware design hasn't changed dramatically from themodel we reviewed in 2008, but neither has its status as the world's most feature-packed portable media player.