| This may be an iPhone problem, not your Mini. For example, iPhones use a different bluetooth stack than 95% the rest of the known world, making it highly uncompatible with other systems: many people I know with iPhones have similar problems not only with their Minis but getting them to work with a multitude of things. I'd first get a "normal" blueooth phone (Nokia, Sony Ericsson) & see if it works OK with the Mini, that way you'll know it is an iPhone problem. | 
