Now, once again Apple is showing the way to the Future : how we'll be able to control any *connected* device from our smartphone - er, iPhone.
Possibilities are endless, including for professional applications. ***
More details on Remote here.
*** Call for developers : you 're young, you're open-minded, you're french (yes, some of us combine those three criteria ;-) you're an iPhone/Mac developer : please drop me a line (Twitterers welcome).