According to sources, Verizon is testing out iPads on their network. The device being used is apparently CDMA-compatible, a standard that Verizon is one of the few networks to use.
Currently, AT&T is the only wireless operator in the U.S. to offer 3G service for the iPad using its GSM technology. While this isn’t a confirmation that Verizon compatible iPads are coming, it’s one of the strongest hints so far.
Source: Boy Genius Report