> I have that too, but that's because I bluetoothed the contact list from 
> the phone to the car. They slowly drift out of sync, of course, and it 
> doesn't work for anyone else's phone.

Oh ok, mine must work differently then, there is no way to manually add or 
remove contacts from the car, it just displays what is in the phone.  Not 
sure at what point it grabs the data, I haven't played about with adding 
contacts while it's connected to the car.

Also lots of new cars have an "SOS" button (usually up by the rear view 
mirror somewhere) that uses a built-in phone and SIM card to call the 
emergency services.  Some cars even call this automatically within a certain 
time of an accident if you don't manually cancel it.

> Actually, I believe it's because the SIM card is very slow, so the phone 
> caches the values when you put the SIM in.  I was under the impression the 
> SIM cards stored everything of interest about your phone. I could be 
> wrong.

My SIM card apparently can only hold 100 entries, and the entries are only 
just 1 name and 1 number.  In my phone I can store multiple numbers and 
other details (eg email, address, notes etc) for each person, plus the only 
limit is the size of memory in the phone.

> It also means the car is using the radio in my pocket, running off tiny 
> batteries, rather than the radio in the car running off a 20-pound lump of 
> lead and acid.

Or an engine generating 0.1 MW :-)  Interesting point though, I don't know 
on mine whether it's the car or the phone that is actually doing the radio 
comms, I never thought that it might be the car...  I wonder how I can tell?

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