AT&T Unlimited calling plans dropped $30, Unlimited data+voice now $100

AT&T dropped its unlimited calling plan $30 today to match Verizon’s drop earlier this morning.  The broader move by mobile operators who have been lowering their voice minutes is clearly a pre-emtive strike to VoIP providers including Google with its recent purchase of Gizmo5.  

Soon, people will have the option of ordering data only plans and using their VoIP services (you can actually buy a data card and swap out your phone SIM to do this).  Mobile Operator 3 in the UK for instance sells data-only phones and expects people to hook up their Skype accounts for voice.  

For those of you iPhone users affected by the change, congratulations and have a good weekend with that extra $30.