What are you rambling on about?
No iPhone, iPad, or iPod has EVER had WiMax, and it has nothing, I mean NOTHING to do with location. What are you talking about with looking for the nearest eatery - Siri has helped me with that tons of times.
You wouldn't know if you needed gas ( I assume that's what you mean, your post makes no sense.) anyway if your gage wasn't working...
Doesn't WiMax work on the same "wavelength" as WiFi?