It's cool with me if you don't like Gruber, but we don't really need to hear about it. Instead, just stop reading Gruber. It's particularly useless to read your ad hominem attacks against both Gruber AND his readers in the last sentence you posted.
Gruber TOLD us what is "different" now; what's different, clearly, is that journalists are being given briefings like this to spread the word in advance about OS changes. That's quite obvious from his entire article. You're just being obtuse. As for why Siri isn't in this release, well, one assumes it's cause Apple isn't done with it. It's not Gruber's job, nor is it interesting to readers, to post his guesses about things which are NOT in the new release; what's more interesting is what IS there.