I thought Alec and Steve did a superb job as hosts last night. They were fast, funny, didn't wear out their welcome ever, and didn't push for effect. If something didn't work, they moved on. Wonderful.
I'd rather have heard the songs and skipped the danced scores, but they've done danced scores before, and this was no better or worse than the others. I just think it's not a good idea since the dancing has nothing whatsoever to do with the films. (The street dancing was spectacular, by the way.)
And as for the introductions of the best actor/ actress nominees by friends/former co-stars, etc. It's a good idea, but they need to dwell on the work being nominated (which is why they're there, after all) rather than in telling old stories (however amusing) about former experiences on some other movie.
The awards are the awards, so I don't think there is much chance of the envelope opening ever changing. I LIKED not reading the list of nominees for Best Picture since we'd spent the entire show seeing clips from them. By that time, one wants the show to BE OVER, so thank you, Tom Hanks, for doing that.