Verizon announced the CDMA iPhone today and put some pressure on AT&T by offering the smartphone with mobile hotspot that supports up to 5 devices. Pricing for the mobile hotspot was not announced but select Android smartphones include this feature for an additional $20 per month. This charge is on top of the unlimited data plan which is available for $30 per month. Presumably, the mobile hotspot will be a Verizon-exclusive app that enables this functionality.
Currently, AT&T offers the iPhone with the 2 GB DataPro and tethering plan for $45 per month. This is a one to one tethering option that lets you connect one phone to one device. The Verizon option lets you add up to five devices t