Unless it does, there's still an enormous scope for the in-car navigation market as driving is one of the scenarios in which you are likely to lose your mobile signal or see it weakened enough to hurt a fully online navigation application.
From here: http://news.cnet.com/8618-30684_3-10384544.html?communityId=...
The droid is rumored to come with a 16gb SD card, which can be replaced with a 32GB card. Pretty sure thats as much, if not more than any standalone GPS device.
That's cool then.
I hope they're caching enough around a route to get you to a petrol station ;) That's generally why I divert and leave the motorways.
Then it got stolen, and when I went to see if there was a new/updated model, there wasn't: garmin have spent the last 5+ years making mass-produced cheaper models for in-car nav.