PCS/pocket/cricket wireless phone? I have an unblocked phone with t-mobile. Im moving next week to San Antonio, and i wanted to know if i can use the unblocked phone with non-SIM card plans like metro PCS, or pocket wireless. I went to a metro pcs store and they said i couldn't but I suspect they just said that to get me to buy a brand new phone from them. I hear the flashing is possible if i wanted Boost or Nextel but those services flat out suck.