iphone.tomtom.com appears to have been updated. Still not really any new information in regard to the car kit. At least they took it upon themselves to add an FAQ now. 
I don't think anyone has ever received any emails regarding the release.
I got an email that it's available.
me too. Too late though I went for the navigon
You did the right choice. TomToms app sucks at the moment so many different ways...