OK, I think everybody needs to read a little.
But here's what Apple officially lists as in the box:
* iPhone 3G
* Stereo Headset with mic
* Dock Connector to USB Cable
* USB Power Adapter
* Documentation
* Cleaning/polishing cloth
* SIM eject tool
So no, there is no dock adapter (nor dock) in the box. You can buy a pack of three adapters for $9, although Apple's "made for" listings just say "iPhone" and not which version. This is quite confusing, as is the fact that I don't see the iPhone 3G dock for sale yet.
On a personal note, someone should tell Apple that it's "Dock-Connector-to-USB cable." The other way leads to people thinking there's a dock connector. HYPHENS ARE YOUR FRIENDS. OK, I'm done with my copy editor rant.
Did you actually read the original post?
It's not listed as being "in the box" at apple.com, but it hasn't been in the past. I'm just wondering what people have heard.
Again, there was one post a while back, but that was before people had actually seen retail units, etc.