HEY!
This shit comes out in like 5 hours! WHO'S READY FOR PORTAL 2?!?!! 
Also in before "wheres the sdk??" (will it even be released with the game?)
I doubt it will be out immediately at release, but probably within a month or two. Portal's official SDK was out after 3 months I think? Valve has gotten a lot better about it, L4D2's wasn't very long after release.
That said, I expect custom maps to be made within days of release. And they had better be uploaded to TWP! 
Please do not Private Message me for assistance. Post a thread if you have questions or concerns.
If you need to contact the staff privately, contact the Global Moderators via Discord.
Heh, skidding in under the stone door there Indiana.
But I have a feeling VALVe will have the SDK ready a little earlier than a month. I remember them saying something about having it ready at release, and while I'm not that naive, I think they'll be pretty good about it. Especially with all the hype they're throwing up.
Now with 100% more inline comments!