I dont believe it that they will not include it, at least soon after release, but I guess we'll wait and see...
Btw, read the intervew with Chuck Osborn from PC Gamer on www.halflife2.net
Here's some lines from the interview:
"Icarus: Was Half-Life 2 what you expected?
Chuck Osborn: More
Icarus: Was it worth the wait?
Chuck Osborn: Absolutely
Icarus: How long is the review?
Chuck Osborn: Nine pages, plus we have a four page story telling you what you need to know about running Half-Life 2 on your system.
Icarus: Anything you want to say the users before I go?
Chuck Osborn: I'm just glad I don't have to keep my playing Half-Life 2 a secret anymore! It was killing me. Trust me...you won't be disappointed."
Its gonna be great