Speck (http://www.speckproducts.com) has introduced the US$34.95 CandyShell Flip for the iPhone 4. With the case you can dock the phone without removing it from its case.

The Flip’s single-piece, patent-pending design is based on Speck’s CandyShell. It offers a hard shell with soft, rubberized interior lining and button covers that provide shock-absorbent insulation against bumps and drops. The lower portion of the case features a hinged flip-back panel to facilitate docking. When the case is removed from the dock, the panel simply flips down into place to keep your phone protected.