I have already bought the charger now for the second time because my parents can share their MP3 player and navigation system should recharge anywhere. The charger has two standard USB ports. A 5V / 1000mA charging current and the second with 5 V / 500 mA. This is probably covered virtually all conceivable equipment. The power plug is laterally folded and the car plug is hidden under a plastic cap. The charger is of course made in China, but processed surprisingly good for the price ....
Update - April 2011: now bought the third device / away and to date, no problems!