Cobra Joyride works to integrate your car with you Android phone. It's a rapid charger which syncs up with a (free!) app and helps you make hands-free calls, launches voice commands, and will even help you find your car in a big parking lot (or, if you're like me, figure out where you parked so you can move it for street cleaning).  And most of it can be done with just one button.

Here's how it works: when you plug your phone into the charger in the car, it automatically launches into "Driving Mode."  This mode is completely customizable: you can create lists of apps you need when driving, like GPS or a music player, to automatically launch.

And there's this glowing button on the charger. With the button, you can pause/play music, bounce between your apps, and make phonecalls.  The Cobra Joyride app manages everything the charger can do...and it can save your car's GPS when you park it so you can always find it.

You can get your hands on one (for yourself or as a gift!) for $39.99 from Amazon or Cobra.