As promised, I spent a massive chunk of Thursday at Microsoft’s X10 event in San Francisco, and tweeted relentlessly, at least for a while. Now, it’s time for some blogging.

Honestly, my brain is pretty fried, so a lot of the heavy lifting will be coming over the next few days. But I thought I’d fill you all in a little on what I did today, so you’ll know what to expect from me. Also, in case you missed it, I already previewed “Final Fantasy XIII,” one of the games that was playable at X10, earlier this week.

In the earlier of Thursday’s two sessions, I attended developer demos of “Crackdown 2,” “Fable III,” “Halo: Reach” and “Alan Wake,” in that order. I’ll post my thoughts on each of them later, but I’ve gotta say they all look packed with potential at this point, though it was clear the first three have a ways to go before launch. “Alan Wake,” which has been in the works since the Xbox 360 launched back in ’05, looked pretty polished.

During the evening session, I returned to get some hands-on time. I played, in order, “Dead Rising 2,” “Alan Wake,” “Toy Soldiers,” “Scrap Metal,” “Perfect Dark,” “Asteroids” in the upcoming “Game Room” app, the upcoming downloadable content for “Left 4 Dead 2” and “Splinter Cell: Conviction.” The only games playable on the show floor that I didn’t try on Thursday were “Final Fantasy XIII,” which I skipped for obvious reasons, and “Lost Planet 2.” A fan of the first “Lost Planet,” I’d liked to have played a bit of the sequel, but I simply ran out of time.

I’ll be posting my thoughts on what I saw from each of these titles as soon as I can get to them, although there’s an embargo on any coverage of hands-on time with “Alan Wake” until the middle of next week. I’m able to talk about the developers’ presentation, though, so expect that sooner.