Surprising no one, Bloomberg reports that an upcoming iPad will support Verizon’s network directly.
This isn’t as likely to be as big a threat on AT&T because the iPhone issue has been mostly on dropped calls and AT&T’s network is technically faster (though not faster than LTE) than Verizon’s 3G. Verizon’s 3G coverage is of course better.
The real questions are will that iPad be the iPad 2 (yes) and will that iPad do LTE (hope so!).