Boot Camp was originally released as a preview feature, a teaser of what was to come in Leopard. Now that Leopard has arrived, Apple will no longer be supporting Boot Camp for OS X 10.4 (Tiger). According to this MacNN article:
Existing Boot Camp beta participants will still be entitled to keep their Windows partitions, but the software that manages installations will be deactivated, and Apple will no longer provide updates, requiring users to upgrade to Leopard if they wish to add to or modify the Boot Camp partition.
Thanks to Brian for the heads up.
