I used the WildCharge system for my iPhone 3GS for a long time. I liked that I didn’t have to plug the iPhone in each time, but having to remove the case for synchronizing the phone got on my nerves.
A new wireless charging system from Powermat has debuts that is specifically designed for the iPhone 3G/3GS. The handset includes a receiver case for the iPhone 3G/3GS, the power mat, and an AC adapter.
The charge mat is specifically for the iPhone and is very small to take up less space. The entire system can be had for $69.99 and is available now. The iPhone case has a mini USB port for synchronization of the iPhone without removing the case.