If you load the Blackberry Desktop Manager software on your PC, you have the "Switch Device" icon. Click that, and it will take care of transfering all of your data to the Blackberry.
But not if you are using Vista as I've been trying to do exactly that for 2 days, Vista recognises the updated Palm software but my Palm m130 doesn't, so it didnt work for me............its been a long 2 days!!!