While this may seem impressive at first glance, I’d like to make a few points.
1. You can do the first half of the video on just about any smartphone. Google Maps isn’t something you need to boot up Firefox for, there’s an app for that. In fact there are many better apps out there.
2. Who wants to dock their phone as a mediacenter? That’s what AirPlay is for, except you can still use your phone while it is pushing video to the big screen. What happens to the HD Multimedia dock when you get a call or want to multitask?