just an FYI, the Arkon universal mounts fit the Incredible PERFECTLY. the side don't block the USB charging port and they also don't touch the volume buttons. perfect fit.
i just got my "SM425-S - Universal Mega Grip Smartphone Mount for Seat Bolt or Floor Mounting". installation was a breeze and it works very nicely.
here are some pics:
if you don't like the seat mounting bolt style, Arkon also offers a standard windshield mount, cup holder mount, and vent mount. all of which use the same phone cradle.
these pics were taken with my Moto Droid by the way.