iBolt dock on Verizon's website. It doesn't look half-bad. It even claims to work with an Otterbox case (I would guess they mean the Commuter). I wish it docked to the microUSB connector just by placing in the dock instead of having to insert the connector after placing it in the dock, but I guess we can't always have everything that we want.
The good thing about the dock is that, in addition to starting car mode automatically, it outputs audio through the microUSB connection and then splits it out to an auxiliary line. This should prevent any problems with echos while on the phone in the car that some people have had by connecting the phone directly with an auxiliary cable. Here's a good shot from this website of the cable it comes with, which is similar the the awesome cable I had with the OEM dock for the RAZR MAXX:
Here's a pretty good video overview of the dock as well: