It's hot. Really hot. But the enthusiasm of the tweeps awaiting tomorrow's launch is even hotter. Off the scale. This is one fired up group, charged to be here. I'd say that most people here are enjoying their second childhood, but I suspect it's really their third. Or fourth. Or they never really grew up.

It's an eclectic bunch too. Besides the stars like Seth Green and LeVar Burton, there is the guy who does the music for American Idol; a Jeopardy champ; the author of the book "E-Bay for Dummies;" a few astrophysicists; and a healthy contingent from Twitter itself, the company. After all, this is good PR for Twitter as well as NASA. Great people, very friendly. Although at times, the Tweetup feels like a combination cruise ship/Star Trek Convention.

I have to say, driving into the Cape early this morning with the gigantic Vehicle Assembly Building (VA looming in front of me was a quite a sight. Couldn't help but giggle. This building was a fascination at a very tender age, when I watched all the Apollo missions take off. This is the building where they built the mammoth Saturn V moon rocket. The rumor was that it is so big actual rain storms break out INSIDE the building.

Our air conditioned "twent" is right near the countdown clock, which is now at a built-in hold at T-11 hours. We can see the Shuttle launch pad off in the distance, like a mirage. Tonight, we'll be here when they pull back the gantry that surrounds it.

The afternoon program is about to start. Be back later.