Carrier specific phones usually come locked. However, they usually provide the unlock code upon request. As long as one meets their requirements.
No, none of Apple's phones are dual sim. Actually, I am not aware of any of the US GSM carriers selling dual sim phones.
Originally Posted by
JEFFJAGUAR
I vaguely remember reading somewhere that phones being sold in the USA are not supposed to be locked. Note the word vaguely. Maybe wishful thinking on my part.
Also are any of the phones being sold by Apple dual sim? Does Sprint (and Verizon) use sim cards today? I thought sim cards were the vestiges of the old 2g gsm days.