Next time you're in the car with your friend, do the following:
- Use Google Voice Search to start up Google Navigation to your destination.
- While Navigation is running, start your favorite music player and play your favorite song.
- While Google Navigation and the music player are running, open up the browser and surf the internet.
- When you get tired of the internet, switch to some Angry Birds, Fruit Ninja, or whatever game you like. Remember to turn the game sound down, though, since you can do this while Google Navigation and the music player are running.
- Realize that your friend is giving you a very specific scenario to make himself feel better about his phone's lack of true multitasking.