Many sites, including Engadget, were reporting earlier that the Android 2.3 (Gingerbread) OTA update was starting to roll out for the Nexus One. However, it seems people were confusing the smaller and less critical update they were seeing for the big 2.3 update.
This was reinforced by Google developer and Android advocate @retomeier when he tweeted the following:
Not sure where Engadget is getting their reports. The Nexus One OTA isn’t happening just yet – should be coming in a few weeks.
A lot of people are now pegging December 16th, the same day that the Nexus S goes on sale, as the day the 2.3 OTA update will start rolling out for the Nexus S. However, until an official announcement is made (or until people start getting the update), this is all speculation at this point. Stay tuned, and be sure to keep your radios dialed to TalkAndroid today for all the latest and greatest Android 2.3 news.