Verizon has introduced a pair of prepaid plans with unlimited calling and texting for $60 and $70 the other day http://www.verizonwireless.com/b2c/prepay/processPrePayRequest.do?type=ppmonthSP

Unfortunately the plans are only applicable to 3G smartphones. If you are looking to add one of these plans and you need a cheap but very functional phone I've got two sitting in a drawer that are ready to go, a Motorola Droid 3 http://bit.ly/11fJjUw and a Samsung Fascinate http://bit.ly/11thibx. The D3 is back on stock unrooted Gingerbread right now although I have previously run it on Ice Cream Sandwich for about 6 months as my daily driver. 

The Fascinate is running Cyanogenmod 10.1 (aka Android 4.1 Jelly Bean).  If you are want either phone I can provide it either with stock firmware, or pre-rooted. I'm asking $100 for the D3 with the car dock and $75 for the Fascinate although I will entertain reasonable offers. If you're interested, shoot me a note at https://sam.abuelsamid.com/contact-me/