[stepherm]

What I think a lot of people tend to forget is that Verizon and AT&T have based their networks on differing technology (GSM vs. CDMA).

Apple seems to like keeping their product lineups relatively simple. GSM tends to be the worldwide standard. Fracturing their product lineup for (generally speaking) one market doesn't sound like the sort of thing Apple would do. I imagine if Verizon was the major GSM network in the U.S.A., we'd see Verizon + Apple instead of AT&T + Apple.