I don't like to talk on the phone while I drive - I hear it isn't safe. But if I could watch TV ...Forget TV... you can play Doom. And every time you drive past a Starbucks you'll be able to check your e-mail and download another image from that site you frequent. ;-)
Seriously though, some of these new handsets come with quite good Satnav.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1