Energy...

With more than a million 3G iPhones already on the streets, it's no surprise that companies are announcing accessories to help make the new phones even more fun -- and even greener.

The latest will soon be available from the UK-based company Mobile Fun. Their Apple iPhone 3G Solar Charging Case not only protects your precious phone, it comes with a solar panel to charge your device.

The solar panel isn't the only green option in this neat little case. It includes a high-capacity 1500mAh battery, so you can store solar energy until you need to use it. You also get a mini USB to USB cable, allowing you to use the case to charge any other small device that has a USB port.

Mobile Fun says its carrying case will charge an iPhone in just three hours, and it works in any lighting situation without needing to placed in direct sunlight.

Available later this month, the cases will sell for £27.95. Unfortunately, it doesn't look like Mobile Fun ships to the U.S., which kind of figures. Other countries always seem to get the best green toys before we do. But keep your eyes peeled -- it probably won't be long before this device or something like it is also available in the States.