Griffin Technology has announced several new iPod accessories at Macworld Expo, adding to the new products the company announced last week. The PowerDock is an iPod charging base which incorporates four Apple Universal Docks to allow users with multiple iPods and iPhones to charge up to four devices at a time. The PowerDock includes a collection of Universal Dock insert adapters, and will be available in March for $70. The RoadTrip with SmartScan?

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