here is some findings of mine,
this might be important for some people, there have been people with locked sets encountering problems after they have ultrasn0w their phones.

one particular one is owned by chong+, according to him, everything works fine until he ultrasn0w-ed his phone.

no signal..nothing, and the phone only pops out the signal when its mood is good.
tried pwnagetool again with his phone, and it doesnt seem to work as well.

so becareful guys, ultrasn0w your phones at your own risk.

If you bought this from local sellers, very huge chances that the phone comes with some extra bonus, i.e soldered internal turbosims.