I've used several Erickson models with Tiger. The have a bluetooth input device built into them. You can select any of a few modes, like presenter, mouse and so on. Once you pair the phone with your mac and turn on one of those modes, the keyboard setup wizard comes up. you just close it out and you're ready to go. Its really neat, you can use the directional buttons to control the mouse and everything. It also works with Front Row. In fact, until I found my keyspan remote
I used a w600i
to control a powerbook I was using as a media center. I guess what I'm getting at is, depending on the phone, it might have the ability built in. No need for additional software.