I have seen some posts where people say using google voice for voicemail instead of the carriers voicemail uses your minutes. I personally am using google voice as my voicemail on my new Nexus One. ( you get an invite with the new phone) and I have called myself twice and left a message and have not used any minutes. I also dont see any charges from T-mobile for forwarding. So far no problem, anyone else have any comments about this.