I had a friend of mine email a friend of hers at RIM. His Reply about the case:
******************
Me again...you know what, I just re-read your email, I think you were asking
me about the CASE for the 7100, not the handheld itself..sorry about that?!!
I only know of 2 holsters, I have the black nylon one with the belt clip,
but the one in the pictures you sent is a bit different (it has the
caribiner on it). Probably some accessory store or something might sell it,
maybe that wireless world or you could try this place
www.tessco.com
*********************
I guess not everyone knows about them?