I have a AT&T sim card phone number is 702-465-2898
Activated 1st May 2013 with $25 250min/Unlimited txt/Unlimited Int txt + $25 data
I was told that it would still be active for at least a month with no activity.
You can add international calling to this card for $10 so you can call landlines back in NZ.
Sim card alone cost me $40 USD + tax.
Wanting $20 NZ including courier in NZ.
Will also have a T-mobile data only sim card at the end of May when it returns with my other Ipad.
The will last for 9 months with no activity. This card seemed to work pretty much everywhere from Las Vegas thru Los Angeles, San Diego (limited in Tijuana) and Waikiki Beach area.
Wanting $20 for this one as well same deal as the above - Note not available until the end of May/ Early June.