http://www.wiffiti.com/

Wiffiti let’s you send a SMS message to public displays.

The owner of each public display sets governance on the display, i.e. I only want to display PG-13 messages. The public displays can be found on a map at: http://www.wiffiti.com/explore/map.php

http://www.partystrands.com/features/ 

Is another product that people can use to text a location.

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