Hi I bought mine from Ebay ($280) about three months ago, I m living in Colombia, so also bought one of the IMEI unlocking code that you can also find in ebay for 12 box. The phone is working great, I can put it in GLOBAL or in GSM/UMTS, but I think is better the last one couse of battery. The only problen that I got was and issue with 3g, not the same frecuency
too bad... and also there is and strange text message incomming like every hour from network and says "Estamos contigo", and thats the slogan from my actual carrier tigo... Still can find a way too fix that...
So as you can see, this phone can actually work in other carrier!