Steam News
(thanks Frans) follows up on the story below this one announcing that Half-Life
2 authentication issues have been solved:
We have resolved the issues that
caused some to experience delays with Half-Life 2 authentication earlier today.
We appreciate your patience and hope everyone enjoys the game.
So DoD:Source now shows up in my backup list even though it's still coming soon. It also sometimes adds 65Mb to the update total, but only if CS:Source isn't selected or something.