Product Pitch

I was talking about this idea with my uncle on my recent trip to Chicago.

GPS definitely has been a great innovation that has made travel easier and hassle-free. But when you are going in a big group with multiple vehicles where one is "following" another (for either directions or for some other reason) wouldn't it be cool to to be able to communicate with the the other car without having to call the other driver every now and then (probably just to tell him to switch lanes or to watch out for the next exit)? I guess an iphone app would be cool for this. But what would be cooler is to also have a simple external indicator, say a matching colored flag on top of both vehicles, so that the other vehicles on the road will also realize that these cars are together. That way, the other vehicles on the road can watch out for simultaneous identical actions of the two cars. Now that is something to think about.

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