I've never seen a clip like that either and I searched two weeks for the perfect clip for my storm. I got the leather vertical BlackBerry case for easy access.
Posted from my CrackBerry at wapforums.crackberry.com
I'm looking for one so that i can keep it clipped in the holster and then clipped to the visor in my car. I'm not looking for one that i can walk around with. Basically I'm Trying to not have to buy a blue ant. If i keep this clipped to the visor with the screen facing out then i can use the speaker as a hands free device. I thought that this kind of a clip would be cheaper then buying a blue tooth accessory.