Charging Docking Station with 3.5MM Line Out for iPhone 4 - White

Pros: Works great, syncs and charges. Build quality is quite good. Although a heavier base would be even better, but it does not tip over as it is right now.

Cons: Doesn't come with additional cables. The line out causes your phone to direct all sound to the output even when you are not using it. Thus, you can't hear your phone if you are just using this as dock without plugging the dock to speakers.

Other: Maybe one of the only docks that will work with a bumper case without modification. Would highly recommend this.

Pros: - The iphone 4 (with bumper) fits perfectly - solid build - great connectivity - because of the deep fit, the iphone fits really tight into the opening.

Cons: The problem with this design is that the home button will be slightly hidden making it tedious to get to. This is a trade off of the tight fit that i mentioned above. Although this is expected, it makes it hard to use for applications like in cars where you'd want to control the home button (like in my case). Unfortunately this is the best option if you always have a bumper case surrounding your iphone.

Other: Great product for a good price, i've ordered another one for my office. I'd definitely recommend this product. Keep in mind the disadvantages though, but it's always hard to find that perfect product.