question about EZ-Pass/toll transponders and GPS

Most folks probably realize that many new cell phones have minature
GPS receivers in them that allow the cell phones to transmit the
location of that cell phone to cell towers and ambulance,police, etc.

My question is that.. it seems that if a GPS receiver will embedd in a
cell phone.. that it could also easily embed in something the size of
an EZ-Pass transponder..

and my question is.. has this been done or is it being planned?

thanks

.

Relevant Pages

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