iPad Mini internet connection (No WiFi) I'm planning to buy an iPad mini + cellular but not on my country. I would buy itt on the United States and someone is going to bring it to me. I have some questions:


The person who is going to buy the ipad Mini would need to choose a data service from AT&amp;T or any of the other services? 
If it is necessary and the person picks AT&amp;T... would i need to unblock it or something like that? The person would need to suscribe to some kind of data plan?
In my country there isn't LTE cellular network yet... The 3G will work?
In the US - all iPads (including the mini) are unlocked, pay as you please, no contract devices. The two models of mini are A1454 and A1455 with similar GSM 3G coverage:


Model A1454


GSM/EDGE (850, 900, 1800, 1900 MHz)
UMTS/HSPA+/DC-HSDPA (850, 900, 1900, 2100 MHz)
LTE (Bands 4 and 17)

Model A1455


CDMA EV-DO Rev. A and Rev. B (800, 1900, 2100 MHz)
GSM/EDGE (850, 900, 1800, 1900 MHz)
UMTS/HSPA+/DC-HSDPA (850, 900, 1900, 2100 MHz) 
LTE (Bands 1, 3, 5, 13, 25)



http://www.apple.com/ipad-mini/specs/

Accordingly, you can pick whether want to optimize your LTE future bands (or travel bands) or choose a CDMA+GSM model or the GSM only model. Since there are very few countries with CDMA coverage out side the USA, most people end up shopping the AT&amp;T model 1454 - but curiously, the CDMA model 1455 matches many foreign LTE deployments and plans, so it's a bit of a tradeoff which any one person might prefer world wide.