*7. A device that automatically disables any cell phone in any car within 50 car... | Hacker News

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swombat on Oct 19, 2011 | parent | context | favorite | on: Startup Ideas We'd Be Willing To Pay For

7. A device that automatically disables any cell phone in any car within 50 car lengths of me and heading in my direction.

Thanks, you just disabled my GPS, so now I'm looking at my phone trying to figure out what's wrong, instead of looking at the road. That's an idiotic idea if I ever heard one.

bobds on Oct 19, 2011 [–]

Do GSM jammers also affect GPS devices?

It's illegal in most places anyway: http://en.wikipedia.org/wiki/Mobile_phone_jammer#Legalities

egypturnash on Oct 19, 2011 | [–]

If you use an Android phone then you're streaming map data off of Google's servers. The Maps app does cache stuff but there's only so much room.

Also other stuff like traffic conditions...

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