Actually, I think there’s a better way to organize this:

I’m marking this feature request as complete, as there are two ways currently to detect when the phone is in a car: a car dock condition or a Bluetooth condition, both of which are available now as plug-ins on the Android Market.

In order to have the votes correctly tallied, created a new request for a speed condition. If you want a speed condition, vote here:

http://feedback.twofortyfouram.com/forums/5655-locale-feedback/suggestions/884809-speed-condition

Android 2.0 finally adds APIs that would allow apps like Locale to implement a “Bluetooth Condition.” If this were implemented, it would only be available on Android 2.0 phones.

Update: There are some Android bugs that will prevent this from being implemented for the time being. Specifically, we’ve found that Bluetooth will periodically crap out until the phone is rebooted.