Is there a headset button utility for PPC?

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I am looking for something like this on the PPC platform:
"MagicButton: Version 1.1
The ultimate headset button utility for the Treo®600/650. magicButton is a clever utility designed for the Treo® 600/650 to control PocketTunes¿, Dial phone numbers and launch application using the headset button at any time. magicButton is also integrated with PocketTunes to pause the song if there is an incoming call or when you make a call and unpause after you hang up the call. You can even set magicButton to auto answer the incoming call. You can safely use magicButton to dial your favorite phone numbers while you are driving "

I know there is something called Magic Button for the PPC but that is a task manager utility not a headset button utility. Anyone know of such a utility?

Thanks!

No way to control any apps with the headset button?