I do this right now in the US. Straight talk monthly plans (bought 3 months ahead, service has been great so far) + nexus 4 with an ATT sim. $45/month for the

I do this right now in the US. Straight talk monthly plans (bought 3 months ahead, service has been great so far) + nexus 4 with an ATT sim. $45/month for the unlimited plan, $200 for the phone.