OK, are you like me, a guy who always knows where his mobile phone is but never where your remotes are ?
Then you need this:
http://www.salling.com/Clicker/mac/(Yes there also is a Windows version).
Enables you to remote control about everything on your Mac (/PC) with your phone through Bluetooth.
I downloaded the demo and had it running in seconds ! You get playlists on the phone from iTunes (or WMP) and even the image you connected to that song ! It's like you have an iPod in your hands that remotely controls your Mac/PC !!!
I love the rating feature: simply press a number 1 to 5 on the phone while a song is playing, and you rated the song. I never used rating before but this will make it a lot more useful !
It will also let you put the Mac in sleepmode f.i. But you can even control Frontrow, or even the mouse.
Also works brilliantly with Keynote (PowerPoint) ! You can even read your e-mail/rss feeds from the phone display !
After trying it for 5 minutes I bought a license...this is just amazing IMHO.
Imagine if you run this on your MAME / Jukebox cab....... !