Unlock cell phones are freedom, I read the following line somewhere

Some cell phones are designed to use a Subscriber Identification Module (SIM) card, or microchip that stores subscriber data. The SIM card is issued by a carrier and provides cell service by activating any phone into which it is inserted. A locked phone, however, will only recognize a SIM card from a particular carrier. If the cell phone is unlocked, it will recognize a SIM card from any carrier. The "lock" is a software setting that keeps the cell phone "loyal" to one carrier.

Today with all great prepaid gsm offers the better question is why go with a lock phone.

You can get $40 a month unlimited talk Simple mobile plan vs a $40 550 min plan from a major carrier.

Allgsmphones.com has been selling unlock gsm phones for over 10 years, now we carry simple mobile prepaid sim (no contract, runs on T-mobile network)