Blitz, i have a MacBook that I keep a windows partition on. I use either BootCamp or Fusion to run windoze xp to back-up and update my Pearl. I also tether through BT to verizon and I use MissingSync to keep everything same-same all around. I did find that if I tether my BB via usb and try to use VZ Access Manager, it disables the Missing Sync USB, and vice-versa.

For me, there are (unfortunately) a few programs I need that are windoze based, so I need to keep a partition. Have both worlds available in one machine is really great!

Good luck, I don't think you'll regret it.