It will come with a Navteq system.
My understanding, which is only from 2 year old press releases, is that the first cars with TomTom systems won't start to appear until 2015.
http://www.ft.com/cms/s/0/d7c7b08e-d4e1-11e1-b476-00144feabdc0.html#axzz3CRamzrbd