Recent news out of Fox indicates that Apple is in last minute discussions with AT&T and Verizon to provide wireless service for the future Apple Tablet. This could mean there will be two different hardware models, one for each network. Verizon's version of the Apple Tablet would run require CDMA support while AT&T would need to support GSM (Like the current iPhone)

We fully expect the tablet to have built in wireless B, G, and N support but would type of device would it be without cellular Internet connectivity?

This might start a fierce price war between the two wireless giants that will get monthly data plans down to a more affordable price for the end user.

{source: http://www.foxnews.com/scitech/2010/01/21/verizon-att-carry-apple-tablet/}