Ok T-moible is the only one who unlocks phone for free after 3 months in US as far i know.MOTOROLA RAZRV3 (that u can get in T-mobile),its Quad band and u can use it anywhere around the world.If u just need phone its gonna be quite expensive (around $350)and they will charge you around $25 to unlock your phone.I bought it for 200$ that is one year contract and they r gonna unlock it after 3 months.