First, nice commercial, but since all of us loyal VZW customers since the days of Bell Atlantic Mobile are now being screwed over for this device ie: Loss of NE2 credits, loss of unlimited smartphone data, throttling of data users... Every one of these changes in the service is geared to stem financial issues from the offering of this ONE DEVICE!
BAD VZW BAD! BAD VZW!
Second, I still ban all crapple devices
Third, No one said this is a 4G phone, and if speed is your only metric, then keep on using the WORST NETWORK ON THE PLANET.
Fourth, if simul voice and date is a big deal, must have, again keep using some one else. CDMA does have this, but its not been deployed by most US CDMA carriers, and new revision to it has just been released, but again most US CDMA carriers are not going to deploy it. They are going the data LTE and voice CDMA path for now.
Fifth, if your one of the MINORITY US users (75%+ of US citizens do NOT have a passport!) and international travel is a must, then yes you need a GSM and UMTS phone or you need to get another device from VZW that supports that.
Lastly, GSM is NOT interchangable withe UMTS. A phone is either GSM (2G EDGE/GPRS) or UMTS (3G/HSDPA[+]) A "GSM" phone is not a UMTS PHONE! A UMTS phone supports DROPDOWN to GSM. Different technologies on the RF side. And actually for all you CDMA haters your UMTS phones are.....................wait for it............................................
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W-CDMA - A variation of CDMA!