The Extra Settings setting is a new feature on the Samsung Focus S and Flash. As we mentioned earlier it covers Auto Display Intensity, Key Vibration Feedback and Echo Cancellation. It is also apparently being treated as an application instead of a firmware feature in that it was updated this morning via the Marketplace.
Along with the Extra Settings, the High Fidelity Positioning settings were updated as well. So far the updates have only come through on the Samsung Focus S and not the Focus Flash. As to what the update covered, no clue. With the settings not changing it was likely a bug fix or a test to see if it could be done.
We have heard one report that the Focus S's screen seems brighter when set to automatic and I have to admit mine does look a little better after updating. More than likely it's coincidence in that our eyes are getting used to the screen.
If you've received the updates and have noticed a difference, feel free to chime in over in this Forums discussion or in the comments below.
Thanks goes out to pinbak and Dave for the tip!