They seem to have basically lied. xD
they said "Available on Xbox LIVE at 11 PM PT on May 9th!" Then later attached a video to it, titled "Want to see it earlier?" In the video, it talks about how it'll be aired on GTTV first, then be available on saturday morning on XBL.
well, I'm ticked. Another hour and a half to burn, and I have to watch through all of GTTV just to see a video that lasts only a few minutes. ugh.
EDIT: oh crap, I got my time zones mixed up. the original time for XBL would be 1 AM for me also... meaning to watch GTTV, I have to wait till friggin 3 AM? Wow.
EDITv2: after a large amount of confusion, it turns out it will be airing at Midnight tonight for Central viewers, so... 45 minutes. Well, it's better.
EDITv3:
I just watched it on GTTV. A few points....
1. The graphics are almost the same.
2. The promised large scale battles are definitely there. Awesome looking.
3. Chainsaw battles seem sweet.... I guess the chainsawwing won't be so repetitive anymore. the blood-splatter-on-screen effect is a bit lowered so you can see the Locust being chopped in half a bit easier
4. Looks like there'll be a bit more large enemies this time.
5. I dunno if I'm just seeing things... but did anyone else notice that the gore was toned down a bit?

In fact... I didn't see any blood other than things involving the chainsaw. They may have just turned off the "extreme content" (if that continues to exist) setting, but why would they do that?

6. Also, it seems like there will be some in-cinematic button pushing. Notice that at the very beginning it tells you to press X for a split second. I hate that kind of thing D: (incorrect, read edit below.)
7. Some sort of holding there... Seems pretty cool, notice that he snapped his neck to finish him off, sweet

In detail, it seems you can pick up a downed locust and use him as a shield while shooting the enemy.
8. New guns. There seems to be some sort of futuristic BAR-esque gun there, seemingly automatic, but slow.
I Officially dub this thread....
The Gears of War 2 Impressions and Expectations and Crap Like That Discussion Thread of Threadness. BEGIN.
For those of you who missed it:
http://www.youtube.com/watch?v=6kzCJ4UNWfQ
so, graphically, I don't see much difference, but it has a shiny new physics engine, and a crapload of new features. it seems to be turning out pretty well, not perfect, but it'll be good.
The story is a bit interesting. I'm glad they came up with something at least moderately creative.
EDITv4:
number 6 on my list is incorrect. It seems that it's going straight from the cinematic straight into gameplay seamlessly, and the player was right next to a turret, so it was saying "press X to get on the turret." my bad.