I didn't stay to listen because Mark was due to pick me up at 7pm, but I read an article in The Houston Chronicle that reported on it.
I still didn't see anything substantive in the speech. You can talk about bringing change all you want, but if you don't say what kind of change you seek or precisely how you plan to bring about that change, it's all smoke and mirrors.
It's likely, though, that proposed policy was not the point of her speech. Mrs. Obama seemed more intent on telling the students about her and her husband's backgrounds, and that's fine. Really, it's not her place to discuss policy; that's her husband's job. I would just like to see him actually do it. Right now, his speeches sound like a less folksy version of Kinky Friedman's campaign commercials when he was running for Texas governor--but Kinky's commercials were a lot more entertaining.