I can, but that's because Gov. Palin's speech only delved into substance on the topic of energy. Which makes sense -- it is the one national-caliber issue on which she has any expertise. And she definitely sounded like she knew what she was talking about -- though I'm not entirely convinced that the Republican Party wanted "drill, baby drill" to be the defining chant of its convention.
But other than that, I thought the speech was a net negative for Governor Palin. Mostly, its because of what I said earlier: "nice" politicians who go nasty end up hurting themselves. The fact that she seemed to relish in the attacks didn't seem to help (my girlfriend disagrees me on this score -- she thought she looked "awkward" making the attacks. What Jill interpreted as a quavering face, I read as sneer. Your mileage varies.).
In general, though, her speech and Rudy Giuliani's showed something quite revealing about the RNC. They had applause lines, but they were far dwarfed by the "boo" lines. The crowd was most into it when they were being called on to chant "zero", or laugh mockingly at being a community organizer (it took them awhile to catch on that this was funny), or simply boo the fact that Barack Obama wants terrorists to win. And that echoes the general Republican mood, I feel. They hate liberals as much as they've always had -- there's nothing that's changed in the last eight years to make them feel that pro-choice policies or more balanced tax plans are the right things to pursue. They still have a massive victimhood complex with regards to the media (a play whose efficacy will be judged based on whether the news calls Palin out on her chutzpah-laden decision to -- again -- nakedly lie about opposing the "bridge to nowhere"). The difference is that this year they're just not that excited about their own brand. So they're happiest when they don't have to think about the Republican Party, today, but can recall Senator McCain's heroism in Vietnam, or can roast the always-worse Democratic Party.
The final verdict? Palin's speech would have made a solid, if unexceptional, performance by Josephine Average RNC Speaker. If Palin had given this speech, then worked quietly as Governor of Alaska for four years, it might even have set her up for a run later on. But in this environment, in this year, it did not rise to Vice Presidential levels. It was very defensive. It did not "change the game", or even move the ball. And, in something that has become a McCain campaign theme, it made a major long-term sacrifice in evaporating Gov. Palin's likability for the short-term image of a riled-up base. That, I think, is seriously going to backfire as the campaign progresses.