Comment Re:PERFECT SUMMARY (Score 1) 480
http://www.engadget.com/2011/01/11/atandt-iphone-4-vs-verizon-iphone-4-whats-changed/
this link shows a side by side comparison between the ATT and Verizon iPhone. The hotspot/tethering will require $50 and that gets you unlimited data for the phone and 2Gb for the tethered device.