Is there a way to configure an iPhone with setting schemes?

I’ve had my iPhone for a month now and I love it and use it at my desk, in my car and when walking around.

When it is charging at my desk I want the screen on medium brightness, WiFi enabled, medium ringer volume and Auto Lock set to “never”.

When it is connected to the charger in my car I would like maximum brightness, loudest ringer volume, WiFi off and Auto Lock set to never.

However when I am walking around I want low brightness, medium ringer volume, WiFi off and Auto Lock set to 1 minute.

Is there a way to configure different “setting schemes” or at least have different settings if it is on charge. I have an iPhone 3G with firmware 2.2). If not, is there an app to do this or is it something I can look forward to in the next firmware release?

Of course I can keep adjusting the settings as I move from my desk to my car to walking, but it would be really cool if I could switch a batch of settings in one go, or at least have the phone switch between a “charging” and “non-charging” scheme automatically.