I bought this off ebay and I must say it works great. It holds my Incredible with the Verizon silicon case perfectly. The arm grip fits between the volume rocker and charging port. The FM transmitter works as good as any other that I've used. I'm using a retractable micro usb cable to connect my Incredible to the usb port for charging. There is an iphone connector at the bottom that was easily removed by opening up the case and disconnecting it.
FM Transmitter w/Car Kit Charger Handsfree for iPhone - eBay (item 310218337505 end time May-11-10 01:01:23 PDT)