Google CEO Eric Schmidt announced at his Web 2.0 keynote that Google will be releasing a presentations application. (TechCrunch coverage here.)

There are lots of interesting aspects to this, especially for Microsoft fans/foes. But I found one thing especially interesting: As far back as I can remember, Google has never pre-announced a product.

Sure, there’s always a lot of speculation about what Google is going to do — calendar, chat, checkout all got a lot of buzz before their release. But Google didn’t make an announcement until the day they were available.

Am I wrong? Did I miss a pre-announcement?

Update: From the Google blog, presentations is coming as the result of an acquisition of Tonic.