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We have iOS6 on both iPad 3s and hubby's iPhone 4S and my iPhone 5, no issues, maps even works well where we are. Did better than the car the other night too.
 
Warning to iPad 3 owners that travel about using wifi

Just to update people on my iOS6 iPad 3 Wi-Fi issue, I spent 20 minutes with Apple support today and they suggested I restore the iPad (in order to solve my connection issues with Wi-Fi at work).

Like before, the iPad was able to connect to the Wi-Fi network once but when I switched to a different part of the network things began to fall apart again, and eventually I got the 'unable to join network "xxxxx"' alert.

This appears to be quite a serious bug in iOS6 on certain iPads. It's not like I have any control over these access points so what am I supposed to do?
 
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