iPhone 3G can warn you of speed traps!!

[hermdog]

Checkout Trapster? - Speed Trap Sharing System

or

http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=290629277

It's a free app.

 

[JustinHorn]

I wanted to make an app like this 2 months ago and then 3 weeks after I thought of it I saw it on the app store