The Seidio Desktop Charging Cradle is exactly what its name implies, a docking and charging station for your iPhone.
In contrast to Apple's white dock, this cradle is matte black. It is very sturdy which allows you to easily use and tap on your iPhone without the risk of knocking it over. With dimensions at about 4"x2.5"x1", the Seidio Desktop Charging Cradle isn't tiny, but it isn't bulky either. The cradle connects to your computer via micro USB and iTunes does recognize when you dock your iPhone.
My favorite feature of this dock is that it is compatible with cases. There is a removable plate included with the cradle; this ensures that your iPhone fits properly in the dock regardless if you're using a case or not . I use an Apple Bumper on my iPhone 4, and it fits perfectly with the plate removed. If the plate is attached, my iPhone 4 fits nice and snug in its naked state. Although the Seidio Desktop Charging Cradle is advertised for the iPhone 4, I tested it with my 3GS, and it fit just fine with the plate accessory removed.
If you're looking for a charging dock for your iPhone, I recommend checking this one out. In addition to being a stylish way to charge my iPhone, I also enjoy having a slideshow display on it at the same time. The Seidio Desktop Charging Cradle is available in the TiPb Accessory Store.