It really doesn't matter.
I am still using my minutes.

EVERYTIME I pick up the phone, my minutes are used.
UNLESS the call is coming from another phone on the same network, ie Tmobile to TMobile or Verizon to Verizon.

What we need is a true VoIP application for these BB's.

Like Skype.
But I dont think we will see it for a long time.
Because if you have SKYPE and BB, you dont need a voice plan at all.
Granted that Skype is up all the time and functioning properly.