Those people praising Verizon's network, might I add that AT&T's 9 Million iPhone customers consumer the same data as 90 Million other smartphone users.
So, put the strain of 90 Million smartphone users on Verizon's so called ultimate network, and watch it crawl also. In fact, it might actually come to a screeching halt seeing as Verizon idiotic engineers don't know how to handle such traffic. AT&T on the other hand knows first hand what it feels like.
I'm sure MMS will be fine. If it isn't I will bitch at AT&T because they delayed it to be "ready" and if their ready isn't enough, it won't matter, I'll take it to court.
AT&T's backhaul is like a single 56k Modem trying to support 300 bandwidth hungry youtube viewers from there laptops. At least verizon has ther FiOS to use as a massive backhaul. Not to mention UMTS is based off CDMA because standard GSM can't naturally achieve near the speeds of CDMA even with an EDGE upgrade....seeing as UMTS is reaching up to 21.0MB/s in areas I would say CDMA while not as widespread should not have any issues with the iPhone. BTW, I'm not biased I like GSM/UMTS 100x better for its global usage, versatility and now much faster speeds but don't act as if AT&T is the second coming of Jesus like EVERY iPhone fanboy frantically jump's too without thinking. You can have 5 bars of 3G and drop every call you have with AT&T....so much for reliability. I KNOW Verizon would have trouble handling bandwidth with the iPhone but please there more prepared.