Rock Bottom Monthly Cost: $29.07
Month-to-month cost = $29.07
Total sign up cost and 1st payment: $41.88 (they include a free month but charge a $29.99 setup fee, $9.95 for S&H, plus $2.56 for taxes).
Pros

The market leader. They aren’t going anywhere anytime soon.

WiFi phones available. Make calls anywhere you can connect to a wireless (WiFi) […]