I get my first mac tomorrow and with it I am getting a magic trackpad. When viewing youtube videos of the trackpad I saw how you connect them via bluetooth. In the video i saw that the person had their iphone connected via bluetooth to their mac too. This got me thinking - what are the benifits of doing this? What am i able to do that i can't through itunes? I genuinely don't know what benifits being able to connect the two machines via bluetooth gives. Can someone elaborate? Thanks!