Apple has released iOS 6.0.2 to fix a Wi-Fi bug (that’s all their support doc says on it) in the iPhone 5 and iPad mini. There are reports that this version has problems with battery life, possibly related to Wi-Fi. You may wish to hold off on this for now.

iPad mini Wi-Fi – iPad2,5_6.0.2_10A550_Restore.ipsw
iPad mini GSM – iPad2,6_6.0.2_10A8500_Restore.ipsw
iPad mini CDMA – iPad2,7_6.0.2_10A8500_Restore.ipsw

iPhone 5 GSM – iPhone5,1_6.0.2_10A551_Restore.ipsw
iPhone 5 CDMA – iPhone5,2_6.0.2_10A551_Restore.ipsw