There are a lot of good reasons to get an iPhone from Verizon … better network, better packages, tethering, etc.
One significant reason NOT to get the Verizon iPhone is: It doesn’t work in the UK and Europe.
I know from personal experience that the AT&T iPhone does work fine in the UK (although it’s pricey).
I’ve also seen comments mentioning that the CDMA can’t handle data connections at the same time as voice connections.
So if you travel to the UK or Europe much, think twice about getting the Verizon iPhone.
I did see a rumor that Apple is going to offer a “World phone” that will, theoretically, have CDMA and GSM capabilities.
We still have a number of months left on our AT&T contract … so I’m going to hold off on jumping over to Verizon. Ginny & I travel a fair amount and really like the UK & Europe.