I used the original Boot Camp beta last year just to see it work. I applied the subsequent updates, but haven't tinkered with it since.
Today, I received an email from Apple that reads, in part:
"...With the introduction of Leopard, the Boot Camp Beta program has ended. The Boot Camp Beta software will expire on December 31, and Apple won't offer further updates of Boot Camp Beta for Mac OS X Tiger."
There's your warning, Tiger users. The Boot Camp beta expires December 31st. Upgrade to Leopard or run unsupported. You don't want that, of course. Windows needs all the support it can get.
Thanks to everyone who sent this in.