ok ive always wanted the palm centro since it came out and ive never owned a phone and im going to hopefully make this my first one well anyway since im only of the age of 15 and cannot buy a contract and i cant join my familys contract i was hopeing to go prepaid now is it possible for me to buy the palm centro (at&t) and put a prepaid simcard from at&t in it and have it completely working like a normal phone or is that not possible?