For anyone considering buying the car dock, be forewarned that there are currently no slipcover cases that can be used with your phone that will fit into the dock. The phone must be used naked. Although the dock itself was designed to accommodate a slip case (the inner well actually is removable to create a larger opening to accommodate a phone with case), and the docs even say that it will work with "Motorola" cases, no such cases exist. At my local Verizon store they have Verizon branded cases and none of them fit into the dock (verified by in-store representatives).
Bob