Agreed, this app works great and gives you the flexibility to configure the car and media dock separately. For instance, I have it automatically redirect my media dock, but leave my car dock as is because I use bluetooth.
Regarding "whoever wrote it" - here's a link to the author's original post about the app development (within the thread that inspired it over in the captivate forum). You'll see he's received many "Thanks" for it, and has a Donate/paypal link in his profile info :).
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