I have a pda and I guess that because i use it for different things I can't see the point of some of the other things it can be used for. My pda has a bluetooth phone dialler, what is the point of this? If I use it to call someone via my phone, don't I have to go and open my phone and activate speaker phone in order to speak to them? Or is this application useful if you already have the headset in your ear?