The Griffin PowerDock 2 can charge an iPod and an iPhone- at the same time. The company is also working on a PowerDock 4, which is able to charge a quartet of iPods or iPhones. You can buy the Griffin PowerDock 2 right now for $49.99 while the PowerDock 4 will be available in July 2008 for $69.99 each. [GearLog]
