Endurance isn’t exactly one of the iPhone’s specialties. So if you find yourself far away from a power socket or USB car cigarette lighter adapter you may be in trouble. That’s when you realise you should have bought the New Trent iCruiser IMP1000. It’s a real power pack with 1100mAh to charge the iPhone 4 up to six times! To keep your stylish gadget going you have to fork over $76.95 (sale!) Of course the thing charges other equipment too and lasts 500 recharge cycles.